Head Gasket Question
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Joined: Apr 2005
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From: South Dakota
Head Gasket Question I am going to be doing a heads and cam swap this spring. I have bought a set of PRC stage 1 heads and a cam. I am looking for a head gasket that has a thinner compressed thickness than stock. I have looked at Comecis(sp?), but they are really expensive. I was told by some one that mr-gasket made a set that was thinner and didn't cost an arm and a leg. Is this true? If so, what is the part number\compressed thickness, and where can I get them? Thanks 
The mr gasket head gaskets will run you $50 after adding shipping. http://store.summitracing.com/partde...5&autoview=sku
I'm looking for thinner gaskets as well, but are those the correct bore diameter for a stock ls1? Aren't the stock ls1's 3.898" bore with a 3.91" bore for the gaskets? How much of a difference would a gasket with a 4.0" bore be than one with 3.91"?
good question. Im in the same boat. want thinner then stock, dont want to pay alot for cometics, and dont want the sealing issues, or the chance of even. rather just use standard gasket type. but what effect does the larger bore have? will it offset the compression gains of the thinner gasket by effectivly opening up the combustion chamber? or is that part negligible compared to the better quench area you'd still achieve by lowering the combustion chamber surface closer to the piston top with the thinner gasket?
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You're correct. They do list a left and right. The bore would probably be too big on those gaskets. I think I'll just go with cometics when I swap my heads. They might cost more, but the best always does.
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Joined: May 2004
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From: Troy,MI.
Originally Posted by LS1MCSS
You're correct. They do list a left and right. The bore would probably be too big on those gaskets. I think I'll just go with cometics when I swap my heads. They might cost more, but the best always does.
Originally Posted by 92SilverSHO
they are made out of the same stuff the stock gaskets are from what Tony told me at AFR. I ordered cometics.
Originally Posted by LS1MCSS
They might cost more, but the best always does.
Im not a cometic fan.
Also those mr. gaskets are fine on a stock bore.