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Old 09-20-2007, 03:12 PM
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Head Gasket Selection!!!

Hey guys ok I need some help here. I am at the step of purchasing a good set of head gaskets for my build up (383 stroker). It is going to be naturally aspirated and high compression, 10.9:1. I bought a good set of Edelbrock ALUMINUM heads with 64cc combustion chambers. Could anyone give me a link to a good head gasket for this build?? I also don't know which thickness head gasket I should be looking for because the site I got my rotating assembly from just says it is 10.9:1 with 64cc heads but doesnt list with what head gasket thickness. Any help here would be great, and I don't mind spending a lot on quality head gaskets.

Thanks,
Keith

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Old 09-20-2007, 10:04 PM
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None of us here can help you because you have the block, you`ll have to do this measurement yourself. Take a measurement of how far down in the bore the piston is, then you`ll need to get a gasket that is or close to the proper thickness to give it a Quench distance of .040.
At 10.9:1 compression even with aluminum heads it will still detonate on pump gas, if you plan to use pump gas, a tight quench distance will be your only hope it doesn`t detonate.
If the piston is say .020 down in the hole, then you`ll need a head gasket that`s .020 in compressed thickness, if the block is zero decked you`ll need a gasket with compressed thickness of .040 or better. Anything in the ball park between .040 to .045 is fine and I wouldn`t go larger in your case. I also wouldn`t go under .040 as unless you know every detailed spec from piston rock and expansion, you risk the piston kissing the head.
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Old 09-21-2007, 09:37 AM
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Im going to say felpro 1010. It has an .039 compressed thickness and is meant to be used with aluminum heads. I ran them on my last 10.5 to 1, 355 and had 0 issues... even with nitrous.
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