Compression question

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Jul 7, 2008 | 05:39 PM

Ekof96Z28

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Joined: Nov 2003

Posts: 518

From: Southeast Michigan

Compression question

I have a Stock block deck, stock head gaskets, stock combustion chambers, stock valve.

My heads were milled 5 thousandths. .005. Will that have any effect on compression ratio in a 95 LT1 with aluminum heads.

Jul 7, 2008 | 06:16 PM

Stl94LT1

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Joined: Apr 2006

Posts: 1,083

From: O'Fallon, MO

Very little.

Jul 7, 2008 | 06:18 PM

Ekof96Z28

Thread Starter

Registered User

Joined: Nov 2003

Posts: 518

From: Southeast Michigan

Yeah, I knew that. I was just curious if it would be .1 or less or if anyone knew what it worked out to be?

Jul 7, 2008 | 07:56 PM

Jazsun

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Joined: Jun 2005

Posts: 1,834

From: Indiana

If you would have gone w/ the impala headgaskets or felpro 1074's it bumps you up .2-.3 ish. The people I asked said the 1074's bump you from 10.4:1 to 10.7:1 the impala is probably even more.