Conversions & Hybrids - LS1 + T56 + C4 = Good times!

Now, it occurred to me a couple years ago that some of the modern performance cars (C4s, C5s, C6s, newer F-bodies etc) just don't scare you the way old muscle cars did or do. Largely because of sound deadener and better suspension, you just don't get that: "I'm gonna die" feeling anymore (adrenaline). This project is about going back to basics. No creature comforts. Deleted radio, sound deadening, HVAC, power windows/mirrors and almost anything else that doesn't help it go faster.

I've always liked Corvettes for there well designed chassis, light weight, brakes, etc.. etc.. So, when I realized early C4s were getting cheap, and old/worn enough that I wouldn't mind stripping one down I started seriously shopping.

I have High Speed Auto-crossed (one solo timed lap on an open road course) an 02 Z28. I love the LS1 and T56! But it has some inherent deficiencies, and I just didn't want to diminish its street car status. Time for a purpose built, lighter, better chassis to put an LS1 T56 in.

The car I ended up with was an 84 that already had an LS1 swapped in. I'm told this car was put together around 2001. When I got it though, someone had swapped out a built LS1 for a stock 98 LS1, backed it with a 4L60E, but it was a non running basket case.

The good news was it already had a stand alone harness, C5 accessories (except the balancer...), C5 seats, newer black interior, C5 Z06 rims, Konis, good springs/sway bars, and upgraded brakes.
http://i193.photobucket.com/albums/z208/firevette/trace84ls1/103-0379_IMG.jpg

Again, with my less is more, street legal race car build theme, some of the parts (4L60-E, C5 seats, Z06 wheels) went up for sale and the transformation began. Then it stalled for a while, life got in the way, but I'm back on it again.

I put 17x11s all around, and have mostly disassemble the HVAC, deleted most of the interior, power locks/mirrors, and cut out a lot of unused wiring. I picked up a nice aluminum, laser cut dash w Auto-meters gauges. It definitely works w the street legal race car theme, and allowed me to ditch alot of the interior plastics.

I'm not real proud of these photos, as it is a work in progress. Complete with messy garage and parts piled on the car (don't worry I have the carpets on the roof protecting it). But I thought some of you would get a kick out of it, and I wanted to prove I actually have this project I keep talking about.
http://i55.photobucket.com/albums/g156/subtlez28/DSCN3994.jpg
I don't know why the previous owner painted the valve covers blue, but they will go gray or black soon.
http://i55.photobucket.com/albums/g156/subtlez28/DSCN3996.jpg
http://i55.photobucket.com/albums/g156/subtlez28/DSCN3999.jpg
I'm thinking carpet delete and fabricated door panels. Pretty much all business and flat black inside. I may black out the dash, but it is so pretty...
http://i55.photobucket.com/albums/g156/subtlez28/DSCN3997.jpg
http://i55.photobucket.com/albums/g156/subtlez28/DSCN3998.jpg

I also removed the Hooker shorty headers it came with as I intend to go with Melrose Header's long tube headers built for LS1 swapped C4s.

Right now, I'm continuing disassembly. I plan to remove the LS1, inspect it, and clean up some engine bay issues (scary fuel and brake lines). I have an under-drive balancer to put on that will work with the C5 accessories. It currently sports an F-body balancer, and the accessories are spaced out from the block (w buts and washers...) to make everything line up.

It is hard to measure things now as it is pretty crowded. I also want to check the position of the engine to see if it offset (front to rear or side to side) appropriately. Because this was an early swap, simple adaptor engine mount brackets were not used. In stead some metal was welded in and C5 stands were used. I'll post op some pics of that when I get the engine out.

Here are some more engine pics:
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4000.jpg
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4001.jpg
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4002.jpg
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4003.jpg
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4004.jpg
Gratuitous (subtle) Z28 shot!
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4005.jpg

Who wants to see some scary stuff?

This had a complete drive line when I received it (though non-running). The ebay add said it just needs a battery and spark plugs to run... yeah right!:rolleyes:
Anyway, I took the trans out a while back and left the drive-shaft hanging. Last night I went to take out the DS and saw this:
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4026.jpg
No strap on one side!! Had I got it running... I'm pretty sure the LS1 would have snapped this u-joint off and... big problems.

But that is not all. This I knew about, but last night I tore it out:
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4027.jpg
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4028.jpg
1st of all, why the external fuel pump when the car comes with an in tank FI pump?

Yes, that is hose clamped, spliced in braided line!
Yes, that is inner-tube wrapped around and hose clamped to the pump.

Not to mention this is mounted just behind the rear end. It was held in with 3 sheet metal screws that were literally finger tight! And the atrocity that was the multi-spliced wiring...

Best part is they cut the factory hard line, so now I'm not sure what I will do. I wish it was in tact as it is nice, safe, and reliable. I may just run a push-lock line all the way up, but the factory stuff would have been my preference. Any idea where I could get a replacement factory line?

I have a Racetronix kit to put in tank. I hope the factory pump and assembly is still in place in the tank.

Looks like a fun project.. Ah the joys of ebay finds eh? Those fuel lines are pretty scary.. I'm using C4 suspension parts for my build, you might want to go thru your bits that hold the top A-arms on, I think I see one of the spherical spacers in backwards..

Ha, yeah, I see what u r saying.
Good catch!

I would be curious what your final weight is. Are you running the Dana36 or Dana44?

Should be a fun car. The C4 can gobble up lots of tire.

When I'm done I plan to corner scale it. I'll try to do the same with my dad's nice, stock 84 to see what the difference is.

And yes, the 315s fit pretty well up front. It is a big selling point for me.

:cool: I'm doing a 87 right now, 6.0 / T56. Slow going as I don't have much time to put to it :(

It is hard to measure things now as it is pretty crowded. I also want to check the position of the engine to see if it offset (front to rear or side to side) appropriately. Because this was an early swap, simple adaptor engine mount brackets were not used. In stead some metal was welded in and C5 stands were used. I'll post op some pics of that when I get the engine out.


In relation to the stock placement, that engine is lower, further forward, and moved towards the driver side. I had my engine in and out quite a few times and anywhere you put it is a compromise. I think they probably put it in like that for heater clearance. You probably don't care about that so I think you have the right idea to move it.

Hopefully I will get my project off the back burner this winter. I have a half finished trans mount for the 4l60e, and I had the engine placement all figured out. But it has been so long, I am not sure if I remember what my plans were :(

Anyway, it is good to see you are still working on it. :cheers:

Thanks, it is hard to know how it is changed from stock as I got it modified.

I assumed it was lower. So the stock engine mounts offset to the passenger side? At 1st I actually thought the engine was offset to driver's side, but it appears to be centered. That is probably ideal.

How do you know it is moved forward? How far forward do you think it is?

Who wants to see some scary stuff?
Gee, thanks man, I didn't sleep at all the night you posted that! :eek2:

OK, seriously, it's a sweet-looking car from the outside, & I'm sure that by the time you're done with it, it'll be kickin' butt & not even bothering with names... :D Cool project man, it's good to (finally :punch:) see pics of it, I'm looking forward to watching it come together!

V8Rumble

Thanks, it is hard to know how it is changed from stock as I got it modified.

I assumed it was lower. So the stock engine mounts offset to the passenger side? At 1st I actually thought the engine was offset to driver's side, but it appears to be centered. That is probably ideal.

How do you know it is moved forward? How far forward do you think it is?

Yeah, the stock mounts put the engine significantly further towards the passenger side. The trans mount that was on your car (the one you included with the pedal trade we did last winter) moves the output shaft over ~2 inches, so that might have had something to do with that placement choice as well. The LS1 has to be mounted further forward in the C4 because the head interferes with the firewall. I have some pictures of my engine resting on the stock mounts that I can send your way. I had it further back than yours because I was hoping to use the speedhound mounts, but the 4l60e trans was hitting the tunnel. I am going to mount mine a little closer to where yours is, but probably not quite that far forward.

Yeah, the stock mounts put the engine significantly further towards the passenger side. The trans mount that was on your car (the one you included with the pedal trade we did last winter) moves the output shaft over ~2 inches, so that might have had something to do with that placement choice as well. The LS1 has to be mounted further forward in the C4 because the head interferes with the firewall. I have some pictures of my engine resting on the stock mounts that I can send your way. I had it further back than yours because I was hoping to use the speedhound mounts, but the 4l60e trans was hitting the tunnel. I am going to mount mine a little closer to where yours is, but probably not quite that far forward.



Actually I got my LS1 sitting further back than the original TPI motor by quite a bit with no space issues. I can now fit a turbo in front of the motor if I wanted (thinking about it). Yea, it sits more to the passenger side, weight offset so ok with me :)

I'm using the corvette oil pan and corvette access.

Actually I got my LS1 sitting further back than the original TPI motor by quite a bit with no space issues. I can now fit a turbo in front of the motor if I wanted (thinking about it). Yea, it sits more to the passenger side, weight offset so ok with me :)

I'm using the corvette oil pan and corvette access.

Weird. I had mine slammed against the firewall and the trans still had to come forward to meet the engine. Unless you're speaking in terms of the front of the engine? In any case, do you have pictures online anywhere?

Weird. I had mine slammed against the firewall and the trans still had to come forward to meet the engine. Unless you're speaking in terms of the front of the engine? In any case, do you have pictures online anywhere?

I'll try and find some, i've actually moved it forward just a little again as of late. I think it's current position the shifter on the T56 lines up better. The motor is out again as I put the clutch on it, I was playing with the pedals, boy what I pain in the $#%@#. Mine was an auto before, after two back surgeries it's not easy getting under the dash :)

I would be curious what your final weight is. Are you running the Dana36 or Dana44?

Should be a fun car. The C4 can gobble up lots of tire.

What is your educated guess on what you think your final weight will be,I was thinking it may be in the 2900 lb range.Have you weighed the deleted items, that would give us a better idea what it going to weigh.It may be very well , much under that guess!Definitely lightweight road racer

I'm shooting for under 3000 pounds. I am guessing 2900 also.

The car was modded when I got it so I haven't weighed everything I've taken off. My plan is to corner scale it and my dad's clean, stock 84. Then I will have an accurate comparison.

I got to work on the C4 last night and again today. One great thing about C4s... they are easy to pull an engine out of! I was worried about going after it without an extra set of hands, but, no problem.
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4029.jpg

Getting the LS1 out of the way will allow me to clean up the engine bay some, and more importantly, go through some questionable mods.

The front brake lines are kind of a mess, since I received the car modded, I don't know how they looked stock, but I'm not happy w how they sit.
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4031.jpg

It also let me get a good look at the sections welded in to run the C5 mounts. They are partially bolted together (along with a weak, and now broken weld). I'm open for input here. Start over? Fix this?
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4032.jpg

Oh, and lets not forget the fuel lines I am so fond of...
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4034.jpg
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4030.jpg

More troubling news on that front... The hot wire for the fuel pump relay (for the external pump covered earlier) was run along the fuel lines! Zip tied nearly 100 times, but still managed to be chafed to bare wire!:nono: Am I being nit-picky again, or does running a power wire physically attached to the fuel lines strike others as a bad idea? You can see it in the pic, its the one without the weather pack connections, kinda just dangling there. It ran (past tense, gone now) all the way from the firewall to the tank. Though it changes color and wire type at a crimp slice 1/2 way.

Today was a mix of good progress and heartache. I rolled it outside and pressure washed the grime from the engine compartment.

I noticed some fuel was dripping from the return line (the pressure line is disconnected over the diff-where the external pump was). So when I rolled it back in the garage I put a pan under it as I assumed it was just the fuel in the line (it had been sitting nose up for so long). I even used a big antifreeze pan to be safe... WRONG! Apparently a lot of fuel can siphon from the return line. I smelled gas in the house... ah oh.. Go into the garage to find gas all over the floor.

I did a lot of cleaning up with the hose, but the smell lingers. Luckily most of the area effected was clear, but some boxes and wood blocks got tossed. I wonder how long the smell will last:(.

Back to good news, Classic Tube sells a complete fuel line. Though I imagine I will have to drop the tank and rear suspension to install it. They also offer brake lines.

HELP WANTED:
Does anyone have pics of a stock 84 engine compartment without an engine? I'm wondering how the factory fuel and brake lines route, and terminate. I'm also curious how the old SBC mounts, and how my cross member has been modded.

I got to work on the C4 last night and again today. One great thing about C4s... they are easy to pull an engine out of! I was worried about going after it without an extra set of hands, but, no problem.
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4029.jpg

Getting the LS1 out of the way will allow me to clean up the engine bay some, and more importantly, go through some questionable mods.

The front brake lines are kind of a mess, since I received the car modded, I don't know how they looked stock, but I'm not happy w how they sit.
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4031.jpg

It also let me get a good look at the sections welded in to run the C5 mounts. They are partially bolted together (along with a weak, and now broken weld). I'm open for input here. Start over? Fix this?
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4032.jpg

Oh, and lets not forget the fuel lines I am so fond of...
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4034.jpg
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4030.jpg

More troubling news on that front... The hot wire for the fuel pump relay (for the external pump covered earlier) was run along the fuel lines! Zip tied nearly 100 times, but still managed to be chafed to bare wire!:nono: Am I being nit-picky again, or does running a power wire physically attached to the fuel lines strike others as a bad idea? You can see it in the pic, its the one without the weather pack connections, kinda just dangling there. It ran (past tense, gone now) all the way from the firewall to the tank. Though it changes color and wire type at a crimp slice 1/2 way.

Today was a mix of good progress and heartache. I rolled it outside and pressure washed the grime from the engine compartment.

I noticed some fuel was dripping from the return line (the pressure line is disconnected over the diff-where the external pump was). So when I rolled it back in the garage I put a pan under it as I assumed it was just the fuel in the line (it had been sitting nose up for so long). I even used a big antifreeze pan to be safe... WRONG! Apparently a lot of fuel can siphon from the return line. I smelled gas in the house... ah oh.. Go into the garage to find gas all over the floor.

I did a lot of cleaning up with the hose, but the smell lingers. Luckily most of the area effected was clear, but some boxes and wood blocks got tossed. I wonder how long the smell will last:(.

Back to good news, Classic Tube sells a complete fuel line. Though I imagine I will have to drop the tank and rear suspension to install it. They also offer brake lines.

HELP WANTED:
Does anyone have pics of a stock 84 engine compartment without an engine? I'm wondering how the factory fuel and brake lines route, and terminate. I'm also curious how the old SBC mounts, and how my cross member has been modded.

Whoa, am I seeing the engine mount was on the small cross braces?? That will never hold up. Do you need to see an unmodified engine bay? I can snap a couple pics of my 87 as my engine is also out now, it's just sitting hanging on the cherry picker. For clearance you'll likely have to cut the front crossmember just a tad to clear the crank pully.

Whoa, am I seeing the engine mount was on the small cross braces?? That will never hold up. Do you need to see an unmodified engine bay? I can snap a couple pics of my 87 as my engine is also out now, it's just sitting hanging on the cherry picker. For clearance you'll likely have to cut the front crossmember just a tad to clear the crank pully.

Yes, the mounts do attach to the cross braces. And, yes, they are coming apart. They do have some gussets though. If you look close, it is the gussets that are coming apart.

I would really appreciate some pics of the engine bay!

As far as clearance for the crank pulley... This was a running swap at one time. It was running with a different LS1. When the last owner stripped out the built engine, he replaced it w a stock 98 F-body LS1. The crank pulley does touch now. He ran the stock f-body pulley and spaced out the C5 accessories. Anyway, I have an under-drive C5 pulley that I hope will eliminate that issue.

Don't know if these will help at all? Notice the crossmember cut, i'll be welding in a new piece to cover that back up. This was required to get the motor low enough. The vette pan is not as deep so I can get the motor lower than if you used the fbody pan. You have to remove the small crossmembers (where your engine mounts seem to now be). I'm going to bend a small dia tube to clear the bat wings so that the diagonal braces are back in there, not sure they are really needed but GM put them there for a reason.

Ignore my stray wires :)

http://harristree.net/ls1-vette/v1.jpg
http://harristree.net/ls1-vette/v2.jpg
http://harristree.net/ls1-vette/v3.jpg
http://harristree.net/ls1-vette/v4.jpg

looks a little roughly done now, but thats how most good projects start. keeping an eye on this to see the progress.

awsome, I have been wanting to do this swap, keep up the good work.

Decisions, decisions... My 1st plan was to leave the engine together so I could focus time and energy on the other areas of the swap. Then go through the engine next winter.

But, with all the 1/2-@$$ stuff I'm finding, I wonder how much could be wrong with the engine. I noticed the rear of the engine is abnormally oil covered (was an auto car) and the rear cover is missing a bolt... Also, the driver's valve cover is missing a bolt...
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4040.jpg

I picked up:
LS6 heads
LS6 cam (and springs)
Ported Oil Pump and TB (by Drag Werks)
LS6 Intake
Katech rod bolts
and I'm considering an Improved Racing F-Body Trap-Door Race Baffle (oil pan baffle)

So I'm strongly considering going through the engine now, rather than gamble. Not to mention more power is a beautiful thing!

Tomorrow I'll clean this thing off and ponder...
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4039.jpg

Input is welcome here.

Also, does anyone have an extra rear cover or 98 Valve cover bolt?

this look sweet cant wait till your done with it will almost be like a new car

I don't remember when we talked if you already had the clutch pedal installed?? If you do is it possible to post a pic of that? I know very well it's a pain in the #@@ getting under there :) I'm having a hell of a time getting mine put on, seems the only way to get it into position i have to somehow pull the main power wiring harness out of the way? Just not seeing how the damn thing fits up there.

Mike

I tried to get some photos... not the easiest spot...
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4041.jpg
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4042.jpg

We did talk to you about the clutch. It was difficult to work around the wiring harness and dash plastics. I ripped everything out at that point.

I would highly encourage you to keep shopping for an 84-88 set up! I have both (I got the later set 1st also). But the correct ones are a simple bolt in deal.

Here are some diagrams I received from another forum member:
84-88
http://i55.photobucket.com/albums/g156/subtlez28/84-88Clutch.jpg
http://i55.photobucket.com/albums/g156/subtlez28/84-88Clutch2.jpg

90-95
http://i55.photobucket.com/albums/g156/subtlez28/Slide1.jpg
http://i55.photobucket.com/albums/g156/subtlez28/Slide2.jpg

PM me you're email, and I may be able to forward them to you larger.

pm sent. Today I was out there thinking about how your engine mounts where done. I cut off my engine mount cradle today with the plasma and now I'm going to go with the C5 type mount. Underneath the stock mount brackets there is enough flat material that's welded to the main crossmember that I can fab up a pedestal for the C5 engine mounts. I'll post some pics when I get a chance to get them done. I'm either going to get a set (C5 mounts) from ebay or just make them myself out of mild steel. Looking at your pics, I don't know which direction the actual C5 vette has them but if you swap them around that should put you right over top where the original mounts used to be allowing you to mount them on the main cross member and not the diagonal small tube braces where you have them now.


Here's what I'm talking about showing it on yours.

http://harristree.net/ls1-vette/v_1.jpg
http://harristree.net/ls1-vette/v_2.jpg

Interesting... The mounts sit much lower than you are talking about. The plate is at the bottom of the diagonal braces. That said, my engine was too low anyway. The pan was lower than the cross member. I'm looking to raise the placement, and offset it slightly to the pass side. It was in the center, I believe the stock placement was offset.

If this ends up too high, you could just do custom stands or thinner biscuits or bushings.

2 potential issues for consideration:

1-The passenger mount will occupy the space formerly taken up by the C5 A/C bracket/compressor. Not an issue for me, and you talked about top mounting that anyway, right?

2-Mounts so far to the front of the engine will allow the engine to tip back, thus putting more weight on the C-beam. Though I assume with the trans already hanging off the rear of the engine, this is not a deal breaker.

I'm liking your idea. I'm heading to the garage for some measuring!

Interesting... The mounts sit much lower than you are talking about. The plate is at the bottom of the diagonal braces. That said, my engine was too low anyway. The pan was lower than the cross member. I'm looking to raise the placement, and offset it slightly to the pass side. It was in the center, I believe the stock placement was offset.

If this ends up too high, you could just do custom stands or thinner biscuits or bushings.

2 potential issues for consideration:

1-The passenger mount will occupy the space formerly taken up by the C5 A/C bracket/compressor. Not an issue for me, and you talked about top mounting that anyway, right?

2-Mounts so far to the front of the engine will allow the engine to tip back, thus putting more weight on the C-beam. Though I assume with the trans already hanging off the rear of the engine, this is not a deal breaker.

I'm liking your idea. I'm heading to the garage for some measuring!


With the original brackets gone I actually think I can now fit the A/c in the Stock LS1 location :) I done minor measuring and I "think" it will fit.

The mounts in this position would be exactly where the original L98 mounts would be so I don't see any issues regarding weight. Plus the LS1 is lighter, even my iron block 6.0 is lighter than the old SBC.

I think the final placement would still put the motor far back enough that I would have to extend the plate that I was talking about so this will allow it to be mounted lower but it still would be in the original SBC mounting location. I'm not seeing a downside yet but I only done minor measuring today.

Not exact but the original sbc mount location was about where I have the red dot in this pic.

http://harristree.net/ls1-vette/v_3.jpg

holy balls, looks like a disaster with doors... Good luck man, looks like a hell of a project and something to be dam proud of afterwards

I like how you think Mike! Flipping the stands moves the contact spot ahead ~4.5". The bushing lines up with the bosses on the block, so flipping to the front mounting bosses is easy to calculate even without C5 stands.
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4044.jpg
The bad news is on the passenger side the stand interferes with the C5 A/C bracket. The good news on that is the part of the A/C bracket it contacts doesn't seem necessary. It is that furthest back ear, I don't yet know why it couldn't be ground off, or even what it is for...
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4045.jpg
That far left hole is just kind of floating back there.
BTW, Mike, if you don't have a C5 bracket or compressor, I will not be needing mine. It appears to be in working order. I just put it up to see if it would work for you.

Now, moving my mounting location ahead 4.5" puts me just behind the flat surface of the cross-member. This would be an easy location to add a plate.
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4049.jpg
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4048.jpg

Only down side it the flat surface of the crossmember is 2.5-3" higher than the current mount location. I want to raise the engine, but not quite that much. Although I would think using something other than the C5 bushings would solve that.

The C5 stands bushing location is about even with the top of the pan. My f-body pan hangs ~5.5" below (your C5 pan ~5" according to the conversion pan sticky). The C5 bushings are ~3". So if the cross member hangs 2.5" below the bushing, I'm set.

More good news is that by moving the mount back 4.5", I can run flat between the 3" bushings and not hit the pan (no cut out required).
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4046.jpg
http://i55.photobucket.com/albums/g156/subtlez28/DSCN4047.jpg

Good deal ! Yes I actually need a C5 compressor, the one I got is from the 6.0 LQ4 and is completely different, even the mounting bracket is different as the original truck acc sit much further forward. The small idler pulley is also different. So do you think it will actually fit in that location now?? To use the a/c that I got from the 6.0 i'd have to rig up some sort of custom mount, doesn't sound fun :)

It looks like it will clear the engine mount, if you loose that rear ear. Still baffled by why that is there. Anyone?

I shot out a PM on another board to see if it clears chassis wise. I'm thinking it does, but don't want to sell you mine if you cannot use it.

Do you have the motor where you can drop it back down in the cradle with the a/c compressor on? I had my motor in/out about 6 times yesterday, takes less than a min to get it all the way in now :) The motor really wants to sit offset, if you look at the base of the windshield you'll see where it curves, that's where the dist needed clearance on the L98 and also is very close to where the crank lines up when you place the motor. I can't move mine any further to the drivers side as the pwr steering pulley will hit. If it will fit I know it will be very very close, that C5 a/c look smaller than what came on the LQ4. Mine is 8 3/4" long from pulley to back end.

I went out and looked again with the pics you posted. I really think your motor can go back more than what you have it?? I put mine at about the same location that you show and think the shifter will be too far forward by at least a couple inches but that was just eye balling it so I could be wrong. but going back even an inch I assume would give you the needed clearance for the bushing then?? I don't have a hole drilled yet for the shifter, waiting for final placement now that I'm changing the mount type :)

I have heard you can swap the c5 mounts and drop them right into a 92+ C4. So you might want to find an empty 92+ engine bay to look at for reference...

Thats what I've been told also, in fact I just sent black87c4 a PM with a link to another forum, where a guy is doing just that.

There was no link in the pm :) What was the site/thread?

Edit: I searched a little and see what you are talking about tho. Yea, same idea I was talking about but i'd still have to use the C5 mounts as I believe the LT1 block was the same as any SBC?? Regardless to also use the C5 stock bushing you'd have to make the mount a little lower (no big deal) or use a short bushing (again no big deal). I can fab up something like that pretty easy, probably with the steel I have laying around already. Seem the C5 mounts cost about $99 (used) by themselves tho then another $100 for the bushings :( that sucks which points me to just fabbing the motor mounts too maybe but would be nice to have replaceable pieces.

Do they make a power steering pulley that is slightly smaller? Even slightly would give me just a little more room on the passenger side (can move motor to drivers side little more) . It's less than 1/2" now without the belt on.

My car has the smaller billet pulley from S&P.

However, my engine was set in the middle, not offset like it should have been. Other swaps clear the factory C5 pulley.

Edit: I searched a little and see what you are talking about tho. Yea, same idea I was talking about but i'd still have to use the C5 mounts as I believe the LT1 block was the same as any SBC?? Regardless to also use the C5 stock bushing you'd have to make the mount a little lower (no big deal) or use a short bushing (again no big deal). I can fab up something like that pretty easy, probably with the steel I have laying around already. Seem the C5 mounts cost about $99 (used) by themselves tho then another $100 for the bushings :( that sucks which points me to just fabbing the motor mounts too maybe but would be nice to have replaceable pieces.

Right, those guys are using the C5 stands, and LT1 k-member.

I bet you could find C5 stands cheaper than that with some shopping around.

My car has the smaller billet pulley from S&P.

However, my engine was set in the middle, not offset like it should have been. Other swaps clear the factory C5 pulley.


I'm just looking for that little extra in hopes I can fit the A/C compressor :) I picked up some C5 mounts so when they get here I'll start fabbing again. I have to swap out the water pump on my TA now, seeping coolant and the temps jumped way up a couple times today in traffic. It's on it's last leg I guess :( Always more to do it seems.

Just an FYI concerning your fuel delivery:

The stock 84 Corvette had the crossfire injection, which was just two TBI throttle bodies on a POS crossram-style manifold. My point is, I believe that the factory fuel pressure was only 9-12lbs. This is probably why your car has that external fuel pump.

Likewise, stock fuel lines for an 84 are only designed for 9-12lbs of pressure, and are unlikely to be the same fuel lines that later models used.

85 cars had the TPI installed, but ran a rather unique 35lbs of pressure. 86+ had the standard 43.5lb fuel pressure. As far as I know, the fuel lines in the 85 were the same as later years, and only the fuel pressure regulator was different, but I really am not sure about that.

Point is... do your homework on your fuel system if you intend to use any "stock" parts. My recommendation would be that you bend up your own fuel lines and use a Walbro 255 pump in a sending unit from an 86+ car.

Do they make a power steering pulley that is slightly smaller? Even slightly would give me just a little more room on the passenger side (can move motor to drivers side little more) . It's less than 1/2" now without the belt on.

Look in the chevelle swap sticky. There is a factory ford pulley that is smaller that the A body guys use to clear the steering box. If you put the car on a diet I think that 2700-2800 lbs is doable. My 87 convertable was 3380 with TPI and an auto.

Here is a prime canidate if someone wants to play along. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=330374782902&ssPageName=ADME:L:LCA:MOTORS:1123
If I don't sell it then it will probably get this treatment although with a solid axle rear.

Just an FYI concerning your fuel delivery:

The stock 84 Corvette had the crossfire injection, which was just two TBI throttle bodies on a POS crossram-style manifold. My point is, I believe that the factory fuel pressure was only 9-12lbs. This is probably why your car has that external fuel pump.

Likewise, stock fuel lines for an 84 are only designed for 9-12lbs of pressure, and are unlikely to be the same fuel lines that later models used.

85 cars had the TPI installed, but ran a rather unique 35lbs of pressure. 86+ had the standard 43.5lb fuel pressure. As far as I know, the fuel lines in the 85 were the same as later years, and only the fuel pressure regulator was different, but I really am not sure about that.

Point is... do your homework on your fuel system if you intend to use any "stock" parts. My recommendation would be that you bend up your own fuel lines and use a Walbro 255 pump in a sending unit from an 86+ car.
Thank you Jim for the drastic underestimation of my knowledge level!:punch::D

I realize the lower fuel pressure issue of the actual stock pump. I have a racetronix kit including a walbro pump ready to replace the stocker (in-tank). Not sure why the last guy didn't go the same route.

I'll check into the 84 lines being different, than say an 86. I bet up to the fire-wall they are the same though. And I remain confident factory steel hard lines can handle more than the factory 9-12 lbs...

In other GM applications (80s-90s) where both TBI and TPI where offered, sending units and lines remain constant for the most part, pumps and firewall-engine lines being the difference. So I am cautiously optimistic here.

Don't get me wrong though, I'm looking for info, and appreciate suggestions.

How is your project C4 coming? Give us an update!

:|Just trying to help dude. You didn't say anything in your threads that indicated that you were familiar with the toliet-bowl injection situation.Thank you Jim for the drastic underestimation of my knowledge level!:punch::D

I realize the lower fuel pressure issue of the actual stock pump. I have a racetronix kit including a walbro pump ready to replace the stocker (in-tank). Not sure why the last guy didn't go the same route.

I'll check into the 84 lines being different, than say an 86. I bet up to the fire-wall they are the same though. And I remain confident factory steel hard lines can handle more than the factory 9-12 lbs...

In other GM applications (80s-90s) where both TBI and TPI where offered, sending units and lines remain constant for the most part, pumps and firewall-engine lines being the difference. So I am cautiously optimistic here.

Don't get me wrong though, I'm looking for info, and appreciate suggestions.

:|Just trying to help dude. You didn't say anything in your threads that indicated that you were familiar with the toliet-bowl injection situation.

I know you are trying to help man, thats why the ":D". Thanks, just giving you crap.

I take it you are not a fan of that set up. I do have another intake and could run a C% filter/regulator, but I'll probably start w the current set up.

I'll update soon. I have a bunch of parts laying around (arp bolts, gaskets, improved engineering baffle, and some other stuff for the heads cam swap!). I'll post up when I get some garage time.

as for the c5 pedistals street and performance sells "biscuit" mounts that are 1.2" when bolted in, the stock c5 biscuits are 2-3" if I remember correctly it saved me a ton of room, I did this on a 90 c4 last winter.

Wow, time has flown. Not much progress over the winter except some parts gathering.
I picked up 4 17x11s and 315/35/17 Kumhos from DTD. I will run these on all four. The 36 mm offset is close, but it looks like I will need to run a small spacer. I went with the Kumhos as I intend to run street tire class.
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0329.jpg
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0330.jpg
I also picked up some other cool and surprisingly expensive parts like LS1 ARP head bolts, crank bolt and flywheel bolts. A road race oil pan baffle from Improved Racing. A Fel-pro gasket set. Clutch hydraulics. A used T56 bell housing and mini starter. New water pump, tension pulley, and idler pulley for the C5 accessory drive.
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN4061.jpg

Over the last couple days I finished grinding off the old mount system (this was an early LS1 conversion). I plan to make new mounts from angle iron coming off the crossmember, and C5 stands flipped forward. This will be similar to LT1 mounts, and have been successfully used by other swappers. I cannot use the speed hound conversion mounts as my original mounts were cut off during the previous swap.

The old cut off mounts were plated welded to the cross braces and frame:
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN4064.jpg
It took more time and effort to grind these off than I expected...
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN4065.jpg
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN4066.jpg

I also dug the Liberty Face-plated T-56 out of its crate. Face-plating is a process where the syncros are removed (except for 5th and 6th). This will allow for extremely fast upshifts (think motorcycle or Jerico trans).
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN4068.jpg
I bolted on a stock f-body hurst shifter. Then I mounted the C-beam adapter bracket... This was no easy feat. I had to batter it into position. I tried using a rubber mallet but eventually resorted to beating it into place with a BFH... So much for the pretty powder coating. Once in place I had to use this C-clamp to torque it into a position where the 3 bolt holes lined up.
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN4067.jpg

Hopefully I will make more progress as in the next couple days.

This is starting to get interesting!!

This thread of my swap is linked below to show how EASY it is to convert a CFI fuel system over to an LSx fuel system. No real fabbing of anything required until you get to the engine area and go with a braided line from C5 reg-filter to intake fuel rails. Possibly the easiest fuel conversion possible.
http://forums.corvetteforum.com/c3-tech-performance/2485432-mn-brent-ls1-4l60e-swap.html

The underestimation statememt was also funny stuff!!:nod:

nice idea, i always did like these cars, and and those 315's are huge!!!

subscribed

I had an impressively engineered and fabricated car drop by. Jim Nilson's "Cormaro". This is a 67 Camaro with complete 85 front and rear Z-51 Corvette suspension installed (along with a custom subframe, firewall and floor). He even kept the Corvette engine set-back. This car was completely fabricated in his home garage!! He stopped by, I drooled over his car, and he gave me some pointers on my project.

I also took some measurements on engine placement. I was wondering how offset the original SBC was offset to the passenger side. My factory engine mounts were cut off by the previous swapper. Looks like ~2" offset to passenger. Crank centerline was 15 1/4" from the frame driver, and 13 1/4" to passenger frame as measured along the cross bar in front of the engine (the pic is taken from an angle).
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN4069.jpg
Any one have differing info?

Also, not sure if I mentioned, but I picked up a D44. So lately I dropped out the 3.73 geared D36 (for sale). Now the vette sits on stands entirely w/out a driveline...

I'll get picks of the new driveline on the floor next time I get garage time.

Oh, and my Melrose headers are in the mail. I cannot wait to get those!

I received some more goodies in the mail over the last couple days.

My Melrose LS1/C4 swap headers came in. I am impressed. Build quality and hardware are top notch! I ordered mine uncoated. I want to go flat black with them. I intend to use header paint. If that fails, I can always get them coated later.
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN4074.jpg

I also received my C5 front brake brackets. I got them from a forum member. Again, build quality and hardware were impressive. I mounted them on some 85 spindles I picked up (because 84s have smaller/weaker mounting bolts). Although I do not yet have my new rotors or hub/bearings so a full mach-up will have to wait.
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN4075.jpg
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN4076.jpg
Spindles came shockingly clean, and cleverly bolted together for shipping.
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN4077.jpg

Also, since I have the D36 (and entire rear suspension) out... I have been drooling over Banski Motorsports' C4 rear suspension parts.
http://www.banskimotorsports.com/C4_Rear_Suspensioin.html

What can I say... I have a soft spot for quality USA made parts!

Looking good. That's some quality parts there at Banski. Cant wait to see more.

Would be cool to see this at Car Craft Summer Nats in mid July.:cheers:

Thanks! Sorry for the late response.

I recently sold my (subtle) Z28. So the rush is on to finish this build. I have done a bunch of work. When I get a little free time I will update my progress w some pics.

Here is a teaser:
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0882.jpg

I have the entire rear suspension out (actually the entire drive-line) along with the rear facia, bumper support and gas tank. The New (to me ) D44 was checked out at the shop. Banski rear suspension is in the mail.

I have finally started the re-assembly process by installing the new Classic Tube fuel line.

The rush is on. I hope to race the car at 2 events in September.

Well, I have been working on it some lately. I haven't had as much time as I'd like for photos and posting, but here is an update:

The Good news:
I have finally started reassembling things!
I have the new Classic Tube fuel line in (which required the whole rear of the car off give or take).
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0881.jpg
I took off the rear facia (nightmare). Lots of hard to reach bolts and sweat and blood involved...
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0873.jpg
And dropped the rear bumper/gas tank assembly:
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0880.jpg
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0882.jpg
More on the gas tank in the bad news section...

I have had some help in the garage today in form of my 7 year old son Patrick!
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0986.jpg
So I was able to get all rear suspension back in. I replace all the consumables: new SKF hub/bearings, ARP wheel studs, Spicer U-joints. I picked up the whole rear kit from Banksi: rod ended camber rods, toe kit, and trailing arms.
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0988.jpg
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0987.jpg
I deleted the dust shields on the rear brakes, and I think I'll leave the rear wheel wells off.
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0871.jpg
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0870.jpg

Bad news:
When I dropped the tank I found the sending unit rusted to the tank. Two of the bolts snapped off. The sending unit was bastardized like the fuel line (pump replaced w hose). If you remember from early posts they also cut up the factory hardline to put an external pump under the rear axle...??? I have no idea why when the car has an internal pump. I intend to replace it with a nice Racetronics kit.
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0884.jpg
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0883.jpg

I do have a new sending unit from Corvette recycling. I just have to clean up the fuel tank 1st. Oh, and did I mention my local radiator/gas tank place stopped boiling tanks two months ago?!

I did some work on the gas tank today. I drained it as much as I could and washed it out w water days ago. It still smells like gas but is dry. I was worried about going after the rust (explosion). Today I bit the bullet and hit it with a plastic media wheel on a drill. It cleaned up well, and no sparks...
I threw a quick coat of paint on:
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0993.jpg
Down side is the cheap bolt extractor kit I bought at AZ did not help w the two broken bolts. However I did bust several drill bits... Those tank bolts are hard!

I switched over the wiring on the late C4 sending unit. I just pulled the factory wires from the old 3 plug connector, the new 4 conector, and put the new unit wires in the old (3) connector. The new sender didn't even use the 3rd place, so I think I'm good.

I also put in my Racetronics pump and sending wiring (just 2 splices - it was for the 84 sending unit).
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0989.jpg
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0990.jpg
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0991.jpg

I got my new (to me) harness in yesterday! I originally had an S&P harness for the LS1 and 4L60E that came in the car. I was going to modify it for the T56. But then I found a great deal on a used S&P harness for an LS1/T56 combo, so I jumped on it.
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN1001.jpg
For anyone doing a similar swap with an auto, my other harness is currently in classifieds.
$650 shipped.
http://i55.photobucket.com/albums/g156/subtlez28/LS1%20C4%20Build/DSCN0994.jpg

any progress yet? keep up the nice works!

I like it. Everytime I go out west I debate on bringing a cheap c4 home to build with the extra t56 on the shop floor. I take it you run down at Blackhawk Farms? I haven't been there since 01. I hope to get there once atleast with my 98 this year.

Good job project....

Any updates?? I am catching up to you :)

Any updates?? I am catching up to you :)

:metoo: I'm doing a similar swap.
http://www.ls1tech.com/forums/conversions-hybrids/1408445-lsx-91-c4-corvette-my-swap.html

I like it. Everytime I go out west I debate on bringing a cheap c4 home to build with the extra t56 on the shop floor. I take it you run down at Blackhawk Farms? I haven't been there since 01. I hope to get there once atleast with my 98 this year.
Thanks. I do run at BHF. Hope to see you there this summer. I run the Midwestern Council events (High speed autocross).

Any updates?? I am catching up to you :)

:metoo: I'm doing a similar swap.
http://www.ls1tech.com/forums/conversions-hybrids/1408445-lsx-91-c4-corvette-my-swap.html
Thanks for the interest guys.

I was moving along nicely in the fall. Then I broke my collar bone. I healed up fine but I life has been in the way since. As has the Jeep Wrangler project I'm working on. I wanted a winter toy. It might get an LS1 next.

I have the engine, T56 and D44 in place. I need to build plates for the motor mounts. Then on to clutch, wiring, rebuilding the front suspension, and interior. I hope my motivation comes back as the weather gets nicer.

I'm glad to hear you didn't loose interest. :cheers:

I'm glad to hear you didn't loose interest. :cheers:

This comment burns considering what I am about to type. I think it is time to poop or get off the pot on this project... We'll see what influence I get on which to take.

I'm sure I'll regret this later, but the truth is I have not made this car a priority in too long...

Would anyone who has followed this build be interested in taking over?
I'm fairly close to completion. Things that come to mind it still needs:
1- Engine mounts or plate
2- Wiring, keep in mind I have a nice plug and play engine/trans harness and ECU
3- Clutch hydraulics (have the parts)
4- Seats (the only part I really do not have at the moment)

I have new:
-Melrose Swap headers
-Dewitts LS1 Swap Radiator
-Water pump, balancer etc
-Laser cut Aluminum dash w Auto-meter Guages

Completed:
-D44 inspected and installed new rear hub/bearings and ARP studs
-Full Banski rear suspension
-Racetronics fuel pump , new classic tube fuel line
-Liberty Face-plated T56 six speed with C-beam bracket
-98 LS1 with LS6 intake and stand alone harness/ECU
-C5 front brakes
-17x11 front and 17x13 rear wheels/tires

$10k would take it home with the LS1, T56 and all mentioned parts. I have much more in it!

I would consider trades up or down (plus or minus cash). Manual trans C5, G8, GTO, CTS-V or LS1 F-bodies come to mind.

I've been pretty candid with this thread. No surprises.

I don't "need" to sell it, but I have been facing the reality I don't have time for this project at the moment...

I'm sure I'll regret this later, but the truth is I have not made this car a priority in too long...

Would anyone who has followed this build be interested in taking over?
I'm fairly close to completion.

Sorry to hear this.. In working on my own LS3/T56/C4 swap, I find it hard to fall into the lure of upgrading, instead of converting, which I know will kill the project.. I think the project is much more successful if you can get it converted/running first, then go back and upgrade. Having a non-running project is a real motivation killer.

I'm all about taking projects to completion, so if I can motivate you at all, I'll try.. I'd recommend concentrating efforts on getting it running/moving again, then deal with the other stuff later..

:2cents:

Sorry to hear this.. In working on my own LS3/T56/C4 swap, I find it hard to fall into the lure of upgrading, instead of converting, which I know will kill the project.. I think the project is much more successful if you can get it converted/running first, then go back and upgrade. Having a non-running project is a real motivation killer.

I'm all about taking projects to completion, so if I can motivate you at all, I'll try.. I'd recommend concentrating efforts on getting it running/moving again, then deal with the other stuff later..

:2cents:

Good advise! If I get guilted into finishing it, rather than selling it that will work to!!

boy i feel that pain, literally. mine went out on a flat bed couple weeks ago. Was very sad to see it go but i just don't have the time required nor the back anymore :(

Good advise! If I get guilted into finishing it, rather than selling it that will work to!!

If its just interest you need I can email you some. :D

JK
But seriously.. don't give up you are close. I agree with waht was said finish the conversion then do the upgrades. It will make the job a lot easier and when your done you can slowly do the upgrades. GL I wish i were closer I would help you work on it.

Here is some motivation for you. a buddy from Digitalcorvettes.com

http://api.viglink.com/api/click?format=go&key=3adff587757a6e13d73fc7d545a37761&loc=http%3A%2F%2Fwww.digitalcorvettes.com%2Fforums %2Fshowthread.php%3Ft%3D141825%26page%3D15&v=1&libid=1322675854231&out=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D39o FjPUl4F4&ref=http%3A%2F%2Fwww.digitalcorvettes.com%2Fforums %2Fshowthread.php%3Ft%3D141825&title=C4%20-%205.3%20%22LSX%22%20engine%20swap%20project%20%5B PICS%5D%20-%20Page%2015%20-%20Corvette%20Forum%20%3A%20DigitalCorvettes.com%2 0Corvette%20Forums&txt=You%20%20Tube&jsonp=vglnk_jsonp_13226758602543

any updates?

any updates?

Well, I listed it in the for sale section...

On the plus side I have been thinking about working on it again. I have some vacation days over X-mas. Maybe I'll get back to work.

I think I'll put the front suspension together and get it back on the ground. Maybe then it will be a car again in my mind and get me more motivated.

If I do, I'll grab some pics and get this thread updated.

Any updates? Im about to drop LS2/T56 in my bros '95 C4 its originaly manual I neef help in engine mounts and transmission mounts

Any updates? Im about to drop LS2/T56 in my bros '95 C4 its originaly manual I neef help in engine mounts and transmission mounts

There's a collection of C4 conversions and tips over on CF that might help..

http://forums.corvetteforum.com/c4-general-discussion/2994824-so-how-many-of-you-guys-are-doing-done-lsx-swaps.html

There are a few here on tech also, but most people are dual-citizens.. ;-)

There's a collection of C4 conversions and tips over on CF that might help..

http://forums.corvetteforum.com/c4-general-discussion/2994824-so-how-many-of-you-guys-are-doing-done-lsx-swaps.html

There are a few here on tech also, but most people are dual-citizens.. ;-)

:D yup I started that thread. I have many faces.:)
Take some time to look at our builds and decide which way you are going. GJ

No progress on my end beyond collecting some parts. I just haven't been putting in much garage time lately.

I don't know you Subtle, but I do know your project is an awesome one. I am working on one as well http://ls1tech.com/forums/forced-induction/1500359-68-lemans-turbo-build.html and it can be draining especially when you have other things going on. I personally don't think you need to reasess this project. NO. You "need" to keep on chipping away at the C4. I have had my Lemans since I came back from the Mid-East in '03 and the damn thing is still a work in progress...but it is my work in progress. I made myself create a damn thread to force me to keep chipping away at it. Now I buy bits and pieces as I see fit. Bought a 044 Bosch pump yesterday, blew my budget...oh wait I don't have one, well there you have it. Take your time, take a breath, curse, swear, threaten then go wrench. I goaded a few Army buddys into coming by the house today to actually test fit putting the engine in..with false promises of Stella Artois and porkchops...by the time we actually get done working, it will be luke warm cans of Coke and Pringles. Good luck and I...look...forward...to...the...FINISHED...product .

Kaine

Thank you for the kind words Kaine!

I would like to finish it. You are right, life just gets in the way. As does my recent Jeep and off-roading fixation... my high school Buick, that I want to put an L92 in.... etc.

I hate the idea of abandoning a project, but I like the idea of narrowing my focus.

Nothing wrong with narrowing your foucs, but we know the importance of one thing at a time (this from the guy trying to turbocharge a Hayabusa, while crying about spending $3000 on a transmission for the C5) Can you imagine how awesome it would be slamming through the gears with the 315's scrambling for traction or taking your favorite corner and hitting the apex just right, with the car howling and 1260mm of combined tire width doing their thing...hmmm, I can. Lol, ok, enough. Whatever you tacke next, start a build thread and I will help you in any way I can, to include false promises.

Well I know where you are comming from.... my ls1/t56 c4 project is still in progress... sits just as it did 3 years ago lol... c5 dash and cluster is in, dynomat is in, new windshield, motor/tranny/D44 are in and I have been able to drive it. I actually got motivated and did some work on the custom c4/c5 hybrid door panels with pourfoam last week. I keep telling myself "one day" i'll get it done haha. I started this project in 2006!! :eek:

It's a shame the car wasn't done better from the start. I remember being very close to puling the trigger on this years ago. Instead, I built another SBC...which is coming out for an LS as we speak...

I'm at the point of just wanting to drive, and if I had a Jeep that I could wheel and CTS-V for my speed fix...I'd be in the same place as you. Good luck with the sale and if that doesn't happen, hopefully you find some new motivation to get it done.

You are (were) doing an awesome job with your C4.

I really hope that you finish it. You have put this many hours into it already, wouldnt it be nice to take it for a drive this fall?? :burn:

The internet is flooded with half done projects, I think that if you want to sell it you would do much better to sell it running and complete. Plus, if you gete it there, I will bet you that you wouldnt sell it right away, but rather keep it and enjoy the fruits of your labor a bit. :drive:

It sucks reading this entire post, only to learn the project may not get finished, especially when it looked like you were doing such a great job with it. :(

DO WORK SON! ;)

Well I know where you are comming from.... my ls1/t56 c4 project is still in progress... sits just as it did 3 years ago lol... c5 dash and cluster is in, dynomat is in, new windshield, motor/tranny/D44 are in and I have been able to drive it. I actually got motivated and did some work on the custom c4/c5 hybrid door panels with pourfoam last week. I keep telling myself "one day" i'll get it done haha. I started this project in 2006!! :eek:
Thanks for chiming in KP. Your build was helpful to my progress. And you were nice enough to answer some PM questions back when I was making progress.

Like Steve85 said, if I had a CTS-V, I would really be in trouble with lack of motivation! I have passively shopped for them multiple times including recently. In fact that was a big reason why I sold my Z28. Hard to work on your basket case, when you have a running fun car.

It's a shame the car wasn't done better from the start. I remember being very close to puling the trigger on this years ago. Instead, I built another SBC...which is coming out for an LS as we speak...

I'm at the point of just wanting to drive, and if I had a Jeep that I could wheel and CTS-V for my speed fix...I'd be in the same place as you. Good luck with the sale and if that doesn't happen, hopefully you find some new motivation to get it done.

I have no faith that the project will sell half done. I hope when the weather gets warm, I will get it together.

You are (were) doing an awesome job with your C4.

I really hope that you finish it. You have put this many hours into it already, wouldnt it be nice to take it for a drive this fall?? :burn:

The internet is flooded with half done projects, I think that if you want to sell it you would do much better to sell it running and complete. Plus, if you gete it there, I will bet you that you wouldnt sell it right away, but rather keep it and enjoy the fruits of your labor a bit. :drive:

It sucks reading this entire post, only to learn the project may not get finished, especially when it looked like you were doing such a great job with it. :(

DO WORK SON! ;)

Thanks! I agree, pretty slim chance it will sell. And if I get it finished, it will probably stay in the fleet (at least a while).

Maybe as the weather gets warm I will find the will to spend some hours in the garage, rather than at the key-board!

I would have interest in purchasing the swap parts. I have a C-4. I am going to do a conversion on. and I am only 60 or so miles away, in SLinger, WI

quality work going on here.

Great thread man do your best to stick with it I just started
My c4 build l33 turbo with a t56 and trying to do my research
And your build has been most helpful thk