LS1 block Vs LS2 block for Forced Induction

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Mar 13, 2005 | 08:12 AM

96 Comp T/A

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LS1 block Vs LS2 block for Forced Induction

Hey gents,
Does anyone have experience yet with the LS2 block in a forced induction build? I am getting ready to start a project and do not have either LS1 or LS2 block yet. I am wondering If I should pay what looks to be a $700-800 premium over what a used core LS1 shortblock is going for and head right for the 4" Siamesed bore LS2. How do the ALuminum LS1's hold up to forced induction vs there Iron block counterparts? Is ring seal and bore stability a problem?

Mar 13, 2005 | 09:04 AM

smokinHawk

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i dont think borestability has ever been a problem, but i would like the fact that the ls2 has a 4" bore and you can use hellfire rings on them.

Mar 13, 2005 | 09:58 AM

Slowhawk

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From: Bridgewater,Ma

I have a LS2 402 shortblock sitting here waiting to go into a Procharged car with AFR 225's.Should have results in a month or so.

Mar 13, 2005 | 10:32 AM

TwnTrboCE

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From: Dayton, OH

The LS2 appears to be a stronger block. But the LS1 has shown to handle power very well. Really depends on what cubes you want and HP goal.

Mar 13, 2005 | 03:36 PM

sb427f-car

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What's the max safe bore on an LS2?

Mar 13, 2005 | 04:27 PM

Sam88Gta1

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From: Rowlett,Tx

4.020

The way the sleves are cast into the block is a problem past .020 bore.

Mar 13, 2005 | 04:44 PM

sb427f-car

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From: Hazard Co. Maryland

Yeah, I'm guessing it's more expensive to press them in?

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Mar 16, 2005 | 05:52 AM

smokinHawk

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From: Columbus, ohio

Quote:

Originally Posted by Casper

Why can't you use Hellfire's in an LS1?

because unfortunatly they dont come in sizes smaller then 4"

Mar 16, 2005 | 06:38 AM

#10

SINISTER

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i will be putting a 6.0 iron block in mine.

could care less about the extra weight ill just skip lunch a few times..

Mar 16, 2005 | 06:43 AM

#11

Z06PSI

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From: Thomson, GA

Quote:

Originally Posted by spangler

i will be putting a 6.0 iron block in mine.

could care less about the extra weight ill just skip lunch a few times..

That is alot of lunches....

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LS1 block Vs LS2 block for Forced Induction

LS1 block Vs LS2 block for Forced Induction

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