New 5.3 Compression Specs

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Aug 4, 2004 | 08:56 AM

OldNovaGuy

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Staging Lane

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New 5.3 Compression Specs

I was just reading the information on the new 5.3 engines and it says the compression has been increased. Does anyone have any details on how they accomplished this (Flat Top pistons maybe)? And how much?

Aug 4, 2004 | 10:01 AM

BlownChevy

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From: Chatsworth, CA

Have not heard anything about that. I will check into it.

Aug 4, 2004 | 04:35 PM

BigKID

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From: Panama City, Fl

From what I just read, https://ls1tech.com/forums/showthread.php?t=200542, the new 5.3 is getting flat top pistons along with a revised ls6 head design to achieve a 9.9:1 CR.