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C4 Corvettes, 1984 - 1996
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LT1 Block Question

C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

LT1 Block Question

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Old

Sep 11, 2001 | 01:50 AM

#1

SLPman

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From: Corona,Ca.U.S.A.

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LT1 Block Question

I have an '86 L98 with 200,000 miles on it. I'm going to rebuild it and I would like to know if I could use the LT1 block. I want to go to a roller cam and I can get a block for free. I know the LT1 uses reverse cooling but is the block the same as my L98? Can the ZZ4 heads I bought be used on it? Thanks for any info.

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Old

Sep 11, 2001 | 02:08 PM

#2

SPD DMN

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From: Sachse Texas

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Re: LT1 Block Question (SLPman)

The block is quite a bit different. The bolt patterns for the water pump are different and the coolant passage openings are different.

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Old

Sep 11, 2001 | 09:49 PM

#3

GRX

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From: Silicon Valley Kalifornia

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Re: LT1 Block Question (SLPman)

I wouldn't do it. Entirely a different animal. You are setting yourself up for alot of gremlins. :smash:

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Old

Sep 12, 2001 | 03:39 AM

#4

GlockLT4

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From: Dallas TX

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Re: LT1 Block Question (GRX)

yeah... stick with them as a set L98 block and heads or LT1 block and heads

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Old

Sep 12, 2001 | 09:23 AM

#5

MarkBychowski

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From: Austin, TX

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Re: LT1 Block Question (SLPman)

Not to be a weasel, but since you can't use that LT1 block, I'm in the market for one if you're looking to sell it!

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Old

Sep 14, 2001 | 12:59 AM

#6

SLPman

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From: Corona,Ca.U.S.A.

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Re: LT1 Block Question (SLPman)

Thanks for the info guys. I guess I'll stick with the L98 block

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