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Old Mar 10, 2012 | 08:45 PM
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From: Dewey Ok
Default lq4 heads/cam

Lq4 with prc 2.5 5.3 heads ms3 cam. Im looking for advice. What head gasket should i go with.? And what compression ratio to go for? This is my first build so i need a little help. Please.

Last edited by streetTA; Mar 10, 2012 at 09:08 PM.
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Old Mar 11, 2012 | 01:45 AM
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From: PA/MD
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How much does your car weigh, what are you using it for (street, strip, both), stock or aftermarket pistons, and do you mind fly cutting or buying pistons that have valve reliefs?

If you don't have to worry about pistons to valve clearance you should go for around 8.25-a max of 8.5:1 dynamic compression to run on pump gas.
How far does your piston come up out of the bore? If it is a standard .005" out go for a .040" gasket to give yourself a .035" quench zone.
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Old Mar 12, 2012 | 05:12 PM
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From: Dewey Ok
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I have new valve relief pistons. 4.000 + .005. Its a street car. Occassional dragstrip. Full trans am. Idk the weight. I thought a higher compression was disirable.
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