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lq9 lq4 block for turbo

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Old 01-26-2005, 08:52 AM
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ESR
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Default lq9 lq4 block for turbo

I currently have an ls1 5.7 L on my turbo kit. What is the difference on a 6.0L LQ9 vs an LQ4?
Old 01-26-2005, 09:22 AM
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The lq9 Has higher compression than the lq4. You want the lq4 for forced induction.
Old 01-26-2005, 09:35 AM
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LQ 4 .........Im only getting the short block not the heads I already have 6.0 L heads so I doubt its the block that is high compression right its bares more on the heads the blocks are the same correct?
Old 01-26-2005, 09:44 AM
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The blocks are the same.
Old 01-26-2005, 10:28 AM
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Originally Posted by ESR
LQ 4 .........Im only getting the short block not the heads I already have 6.0 L heads so I doubt its the block that is high compression right its bares more on the heads the blocks are the same correct?
lq4 has dished pistons, lq9 has flat tops. both use the same 71-72cc chambered heads.
Old 01-26-2005, 10:31 AM
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Heads are the same. It's the pistons that change the compression... Like stated above.
Old 01-26-2005, 12:17 PM
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Default 6.0

Thanks guys just going to start building a 408 for my turbo and starting to look for my block. The ls1 block is fine and intact but man I dont think we are ever happy with what we have. We always want more power

Originally Posted by F8L Z71
Heads are the same. It's the pistons that change the compression... Like stated above.



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