bigger ls1

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Apr 1, 2012 | 08:24 PM

jessebob99

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bigger ls1

can u go bigger than 383 stroker on ls1 without re sleeving it.

Apr 1, 2012 | 08:56 PM

BlackScreaminMachine

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From: Wallingford CT

Due to the limitation on boring your bout at your max due to limitation on crank stroke. That's why most go to a LS2 due to getting a 4" bore. Also head options open up. Check with builders and you may get some more but at best you get a 0.010" over bore on newer ls1 blocks.

Apr 2, 2012 | 02:27 AM

bww3588

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From: Chillicothe/Lima, Ohio

I think the biggest stroke you can go in a stock deck ls1 is a 4.100 for 392 cubes.

Apr 2, 2012 | 10:46 AM

batboy

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From: middle of nowhere, Kansas

You can install a 4.125" stroke rotating assembly (Lunati) into a LS1 that makes 395 CID. I would not recommend it though.

Apr 2, 2012 | 04:59 PM

PREDATOR-Z

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From: BFE

It is possible (though not recommended) to open a LS1 to 4.00 bore. (Late model ls1 preferred for thicker sleeves)

Apr 3, 2012 | 08:18 AM

dodson55

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From: monticello, ky

if you re sleeve a ls1 yes you could go to a 4 in bore but on stock sleeves no

Apr 4, 2012 | 03:54 PM

PREDATOR-Z

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From: BFE

Quote:

Originally Posted by dodson55

if you re sleeve a ls1 yes you could go to a 4 in bore but on stock sleeves no

Read above again. It has been done. Running LS2 rods/pistons stock crank. Granted it takes guts to play with those margins but it is doable (on late model LS1s)

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Apr 4, 2012 | 08:02 PM

Rlncoalctd

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From: Shreveport LA.

Reason why I ask is because some people arent even breaking 500rwhp with a 383, yet some guys are getting 480 out of stock shortblock engine.

If you take a set of TEA/TFS 215's, a 236/242 615/615 on a 111, fast 90/90 people are reporting 470-490rwhp. How would that setup perform with a few more cubes?

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bigger ls1

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