S4885.3

Im new to the site as you all can see. I recently parted out my DSM. It was a great car aside from spending 35k on it in just parts and not having it to the point that I was happy. Not to mention all I did was get it impounded and my driving record Fubered. And in all reality if I built a F body I would be in the same shoe's. So I have decided to put the cars aside and pick up wear I left off before the Talon. Literally! I now have a 69 chevrolet half ton already equiped with 1 ton drive train. Yes I already have a T400 trans, NP 205 transfer case, 14 bolt full floater rear axle and am currently replacing the Dana44 front axle with a dana60. It has a 8" lift on it and the driveshafts have been heavily modified. The previous owner had a built 454 in it. Held up just fine. I have been kicking idea's around in my head as to which HEART I want to go with but I think I have made up my mind. I just need some help, or a push in the right directions as I am not familiar with all the parts heads/block I would like to use.

I have a friend that has helped me decide on a 5.3 since I will be using a turbo for forced induction. I already have the turbo. It is very similair to a borg warner S488. I measured the intake side of the turbin and it is approx. 88mm. The Hot side is 100mm. So I should be able to make some good power as long as I have a long block that is setup correctly and enough cash to fund my fuel setup, tuning, blah blah blah. I owed a DSM so Im very familiar with what kind of cash that can take.

My friend Sam in Kansas has about 8 different Ls angines sitting waiting for a home. After we had some descussions we decided the cast iron 5.3 wopuld be my best bet. Sure it won't be easy to spool the turbo with just a 5.3 but I think I could get the job done. The hot side on the turbo is rather large but it can be changed if needed. It is a 1.40 AR.

First question. What is the engine name for the cast iron block 5.3 that everyone is telling me is bullet proof to 600-700hp assuming you have the tune spot on?

Next. Ill be wanting the lowest compression ratio possible so I can get away with having a pump gas tune. What heads should I use? I will not be spending very much money on the long block for now as I would like to get it all together and setup the way I want before I go buying a forged crank, GRP aluminum rods, and Weisco HD pistons But I want to have potential for when I do.

I have been lurking on here for the past couple of days and I shave not came up with answer to which I can use Different exhaust manifolds from other LS styles. I would like to modify some stock manifolds like stangkiler (I think that is his name) and weld some V bands on them for ease of removal and it's just a no brainer. I have also been contemplating building my own manifolds similair to the one Ron
Shearer builds.

When I start using efi live will I need to use a mass air flow sensor or will I be needing to use speed density? information!? lol any info regarding to tuning would be awesome.

Oh and sorry about the advertising mods. it was not intended. thanks guys and gals!

blackonblacksls

iTrader: (1)

I dont see why you would put a big leggy turbo on a 4x4 truck. I would think you would want something more for instant spool and lots of torque. Maybe as small as 67mm

S4885.3

because its going to be mostly a poser truck/dyno queen.

COPO9560

Dyno queen in a K series truck?? The big *** axles and other parts will eat up a lot of power.

If you plan on actually driving this thing, you would be better off with a 540 BBC - add a shot of nitrous for your dyno runs. Torque is what you need with a heavy pig like this.

BOBS99SS

iTrader: (2)

so you were an idot in your car and now want to build a big truck? sorry thats all i got out of your post

allout06

iTrader: (11)

you got a lot to learn dude....

kSStamp09

iTrader: (4)

ill be the first to offer some real assistance.

http://67-72chevytrucks.com/vboard/f...play.php?f=206

check out this site, lots of great guys that will love to help you. leaps & bounds over this site.

& i have a '82 C10 shortbed i just swapped a LQ4 6.0 in with 4L80E and 14 bolt 9.5 SF to handle some fat slicks . the 4x4 will be a little different, but i used trailblazer SS manifolds, they tuck really tight to the frame and also do not have EGR or A.I.R ports. the stock LQ4's flared out too far and hit the frame, the F-bodys wouldnt clear my starter and also had the A.I.R. ports to deal with.

my user name is kSStamp0182 on there, look me up, my build thread is there you can see pics of those manifolds and other things like fuel line options, etc.

but anyway, i agree with your decision to go to trucks. my first truck was a '87 R10. it got wrecked, & i had a mustang then a very nice M6 2001 SS with cam, etc. but i sold it and went back with another truck, and plan on doing a Crew Cab K series Cummins build someday :metal: much more respect and dignity IMO, to be blunt 75% of car guys are tools (as seen above) but it seems quite the opposite in the truck world, with the exception of the minitruckers haha.

/rant lol. post a thread over there, you should get alot more positive feedback. hope to see you there & good luck with the build. sounds sick as hell.

98Z28CobraKiller

iTrader: (17)

As previously stated, you are all over the place. If I was putting a turbo in a 4 X 4 truck with a 5.3, It would get a TC78 w/ a T4 .81 housing. Should be able to pull stumps out of the ground nice and easy or tow whatever.

mpatton

35k in the dsm....post some pictures

S4885.3

lol F body guys don't want to see DSM pics all over the site. Ill get banned and flamed for sure. But just imagine everything you can do to a DSM. It was all done minus a built trans and DSS axles.

I realize this seems kind of ridiculous but the whole point is to do something different that hasnt been done before. I would go with a bigger engine but Ive been hearing good things about the 5.3 iron block and the price difference is night and day. A big block chevy is cool but once again. Last time I built a descent 454 it was well over 10k in just engine build and that was years ago. I can pick up a low miles 5.3 wiring harness and ecu for under a grand. The expensive part will be all the little things.

More than likely I will be using a twin walbro 400lph pump setup. Yes they make a 400lph pump now. And it is the same size as the 190's and 255's. How many psi will the stock truck intake manifold hold? And what do I need to do to change the arrangement of sensors in order to go forced induction?

S4885.3

btw why isnt my sig working? Or can you all see it?

S4885.3

http://67-72chevytrucks.com/vboard/s...d.php?t=412159

Thanks KSS!

stock48

iTrader: (17)

X2 good advice. At the most I would go with a s475/83/1.10, and keep cam below 220 with a pretty tight lsa. That 88 will be laggy as hell then when it comes on it will start spitting rods.

S4885.3

Ok when you guys say a 220 cam are you referring to the lift or the duration? Because technically I need to know both. I know on my talon I ran 272 duration on the intake and exhaust but no one ever talked about the lift.

I also have been lurking trying to find what I need to do to setup the truck for a tune. More than likely I will be using a 2007 engine, harness, and ECU along with EFI live. From what I have gathered after 2005 they stopped using the hot wire gmMAF....? If thats the case then they are only using manifold pressure....? HELP! What do I need to convert to turbo from NA?

S4885.3

Ill give you that much! lol The car and my GSXR was not good for my record!

S4885.3

Not going to tow anything heavy. Not really an option with a turbo gas. All they do is overheat. I will however be outfitting it with my 100 gallon gas tank behind the rear window, a diesel truck air compressor if possible and a 30 Gallon air tank. Tools and extra parts at times, but not pulling anything over 6k lbs. Just in case I have to pull a ford or dodge home from moab

SPRAYED 01

iTrader: (22)

If you want to use that turbo why not get an iron 6.0 engine. Those are cheap and strong also and can spool that turbo better. I do agree you have alot to learn but your in the right place. If you keep an open mind and listen to people here you might be able to pull your dream truck off.

S4885.3

6.0 cost a lot. I have a 2008 5.3 lm7 with 24k miles already located. ECU, wiring harness, and all the sensors shipped to utah for $1500. The 6.0 will cost at least another grand on top of that. I am deffinetly taking the advice on the turbo. Dually, no tripley noted ha ha

Now help me figure out what I need to do to convert to forced induction as far as sensors and that.

mpatton

2bar map. I got mine off of a cobalt.

S4885.3

So what I just put a map sensor in where the old one was and thats it? Be specific. BTW I would just get the 3.3bar...