Kemmerer29

What are the options in which a stroker engine can be built with the LS series
Options meaning like how back in the day Chevy took a 327 block with a 283 crank to make a 302
And or I don't remember exactly
But the 383 which if I can remember is a 350 block with a small block 400 crank

Are there like options of taking a 4.8 block in combo with a 5.3 crank or would it b a 5.3 block with a 4.8 crank
What about a 6.0 block with a 5.3 crank or something like that

If there are stroker builds please share info or throw in some links for info

Thanks

conan

iTrader: (5)

With a 5.7L block you can do...
383ci with 4.00" stroke crank.
392-395ci with a 4.125" stroke crank

With a 6.0L block you can do...
390ci with a 3.90" stroke crank.
402-408ci with a 4.00" stroke crank.
418-421ci with a 4.125" stroke crank.

The 5.3, 5.7, and 6.0 all share a common 3.622" stroke crank, stock. The bore is where they get there cubic inches from.

02BlkZ28

Not jack the thread but does that mean i could find me a 6L block & use my 4.00 stroke crank outta my 383 & turn it into a 408??

handyandy496

iTrader: (9)

yep..im going to try a 4.1 stroke with a .035 over al 6.0 block.

02BlkZ28

Well i know what im doing next lol

conan

iTrader: (5)

Yes you can run the same crank form a ls1 block in a lq9/4 block. The max bore of the ls1 (3.905) is the limiting factor for that block vs the lq9/4

ss4chad

iTrader: (26)

I bought an LS6 block and had it re-sleeved to a 427.

Chad

Kemmerer29

Not what I was really wanting to hear.
I was hoping I could not like power wise but could build something similar to the old 302
I was planning boreing and a cam and head work if there was something to do in a 4.8/5.3 or 5.3/4.8 combo.

I was goona get an engine throw the car together and then since blocks can be had fairly cheep and needing rebuild get another engine together.

So I'll pretty much even go to a 4.8 if its the best I can find in terms of miles and price
Then build a 5.3 or 6.0 while beating on that

ls1 1990 VN

So my LS1 3.908 is a figment of my imagination then?

conan

iTrader: (5)

^^^

My apologies for not listing every size a ls1 block has every been honed out too... Most stop at 3.905

JakeFusion

iTrader: (7)

So you want a de-stroked engine? These engines rev like crazy compared to the old SBC stuff. Don't get hung up on short stroke with these motors. Get the biggest bore you can find and either the stock stroke or 4" or 4.1" crank. You will make a lot more power that way...

Kemmerer29

I'm not trying to argue
I don't know exactly what redlines are these days
But I guarantee the 302 which was usually being shifted around 7500 is not a high Rev no not at all the 283 and 327 might have hit 6500 if they were lucky
Also the de stroked engine made close to if not more power then the engine it's block cam from
The 327, sure the FI back then made 360
But the 290 hp rated 302 made an actual 355 and performed as well in terms of acceleration as the PIG Block 396
I don't want big stroke
I want a small block I can shift at 7-7500 @45-50 lbs of oil pressure
Rpm like I was with the 350 that was in the c-10
I had before it was totaled by my dad

It's called a solid cam gentlemen
I understand roller is what most have these days
Solid cams may not even exist anymore
But that's how you get +7000 RPMs all day long with an old school small block
Cause when the 302 was created I don't believe roller cams where what they Are today if they even existed and had been proven from 67-69

So my question is yes can I de stroke a 5.3 buy putting in a 4.8 crank then going to town on heads and cam and all that good stuff
If I do that
I'm looking for somewheres in the .230/.230@.050 and like .543/.525
Something along those lines
If not more duration
.540 life is getting up there

Kemmerer29

I mention pressure cause besides cam lifters and heads stock bottom end on that 350 that I spoke of by the way.
If I had video I would post it
I have also witnessed a 400 Pontic (69 ram air 3) with a 4.185"
Stroke turn 7500-8000 RPMs all day
You guys may think I'm talking out my ***
But old school engins when straight and true with no restrictions what so ever can do almost anything

Yes I have heard numerous times pontics back in the day you hit 6000 your lucky

Well I have witnessed a 400 Pontiac turn 7500/8000 rpm all day long

I way have a video at least of the engine in car and running
But I have to find it
I have plenty of pictures of that 400 In the car but no pulls

Also this 400 was in an 82 Trans Am
Which if you guys know your stuff
Is when GM made the switch and top line v-8 were only of the Chevy 305 and 350

So a car like that with a 400 in it was enough
Then an engine like that with 550 torque spinnin 7000+
Anything is possible

I could probable duplicate that 400 if I could find a block
I know exactly what he had done and what was done.
But I don't have the confidence to do a swap like that myself just too much
I was involved once before and I know how much if a pain I was
But when it was done the baddest 82 Trans Am you would have seen

That's why I'm looking at an LSX swap in one of those cause I had one and want another

That being said
Anyone in the Colorado western side are on here
Know of anyone selling a 85-92 Trans Am has to be a Trans Am and not a Camaro and preferable had TPI so I at least have the right fuel tank.
Car can defiantly have no motor and trans

JakeFusion

iTrader: (7)

I spin 7500 with a hydraulic roller. And a 346 with a 3.9" bore and 3.622" crank will walk a 5.3 with a 4.8 crank. Why? More HP and torque everywhere.

Technology is a lot different in the LS1. You have a a much larger cam core to begin with, so you have stability with a roller.

Stock LS1s rev to 6500. Almost every cammed LS1 can spin to 7k.

There is no need to go backwards. Not for what you want. If anything, you need to move away from the LS1 and move to the LS3 or LS7 and get as much bore as possible.

Hell, the LS7 with a 4" stroke revs to 7K STOCK.

If you go with a Super Victor, you can run damn near 8000 RPM with a hydraulic in the LS platform. Solid is only needed if you want to push past 8K.

Kemmerer29

But I do understand what you are saying I'm not dumb or a know it all

I don't wanna go big stroke though
What can be done in terms of stroking a 4.8 besides likely ending up stoking to some odd 5.3 combo
I wanna keep cubes under 340
I'll go to a 6.0 if I find one
I don't know, I wanna smoke kids in mustangs
Then have them come back and say well your engine is alot bigger then mine especially the 4.6 guys
Cause betting them then saying well
It's only a 4.8 would just be so satisfactory
And also what you get for going with a FORD!!

I doubt I'll do the 4.8 cause I'm pretty content on the 5.3
The stroker question was cause well if I do end up with a 4.8 then I'll probable build an engine on the side then once I blow the 4.8 throw the bad *** plant in there
I would get the build done first but I need a car and the build takes some time as opposed to getting the parts dropping it in and going down the road

Then once it blows pull out drop in and not have to worry about wiring at that point just tuning

DietCoke

iTrader: (18)

my 4.125 stroke stock sleeve motor will turn 8k. the valvetrain will give up before the hard parts will

Kemmerer29

Ah ok
So a solid cam does spin more and harder then a roller
Answers my question.

I don't want an LS1 I don't like them I don't like th LS2 either
It is possible to not like engins and like other of the same series

Al la 305 and 307 were junk but shared the same bore Nd block as 283 327 ad 350

I have driving many ls1 and ls2 lm7 lq9 lr4
And one extended can L33

The cars are pigs with that power and the combo with the t-56
Should be pulling low low 13 or high 12 stock
I hear people getting there with a few bolts ons

But the trucks all of them
Pull really well are very smooth and I would love to have one in combo with a t-56 in an 82-92 f body

I mentioned this before
I have drivin an LS1 and an ls2 GTO
Would take the LS1 over the 2 any day
Just from driving that car
The ls1 gto was rated at 350 and 365
The ls2 was over 400 on both
Well both cars were pretty much neck and neck with acceleration
The ls2 may have had a tenth of a second
Well I would hope so with 50 more horsepower ad torque the LS2 GTO was plain sad for what it had the LS1 GTo was respectable for what it had

I drove on of those FWD 5.3 once I believe in an impala like 2010/11

That things was fun as f**k

KCS

iTrader: (20)

Dumbest. Thread. Ever.

Kemmerer29

I apologize

The 400 had a 4.185" bore after being bore .030
It had a 3.85 stroke
2.17-1.77 intake and exhaust valves

Anything back in the day Chevy wise that had a bore that big was technically a Big Block
4.8-5.3 ls1-ls2-.6.0 are all small
Blocks

Pontiac only ever made one block for all
Engines 326, 350,389, 400, 421, 428, and 455

Anything with a bore like that and Intake valves that size is a big block
Which should not turn past 6000
Small blocks built right 8000all day

I also think its way more impressive to turn those r's I spoke of with Mechanicsll Ignition and Carburator
Rather then ECu and Port Injection
Less restricted and more efficient fuel system it should be able turn those r's when done

Pontiacs were notorious for having the bottom end essentially fall apart past 6200-6500
So having one that spun 7500-8000
All day is even more impressive

If my dad was still alive as I said I would probable build another 400
Cause the torque real pontiacs make is only heralded by the Torque Mopars made
Nothing else cam close
Go she's say a 396 or 454
Only the 427 was close and 396 and 454 are all crap junk pisses of s**t that don't run to save there lives No matter how much money is In it

Kemmerer29

Like i said I'm not trying to argue

Some said these new engines turn way more RPMs and I just wanted to get my point that I don't Know about that
And concluded all small blocks can turn when built
Right

I'm going with a 5.3 or a 4.8 to put in the car wll decide on a build later

I'm as said gonna de Headers, Duals , Cold air most likely Ram Air,
Lightweight I guess under drive pulleys or whatever they are technically called,
Then replace clutch fan with dual electrics

So going off of the Wikipedia #s they say a 00-03 LM7 5.3 makes 285 and 325
I don't wanna deal with an active fuel managent engine
What are guesstimated power outputs with the #s I specified and the bolt ons I mentioned

It lists the 4.8 Lr-4 as 270-285hp and 285-295tq
Power guesstimate on this as well

Just judging from these #s I don't care what other sites say power is just judging from
These