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Old 10-18-2021, 08:28 AM   #9
Yoyodyne
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Join Date: Nov 2010
Location: Lancaster PA
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Default Re: 21 stud deck height, gasket thickness, etc. questions.

Quote:
Originally Posted by Bored&Stroked View Post
Info: Cometic does make 21-Stud gaskets . . . is varying thicknesses. Here is a link to Jegs for a .040 gasket. One thing to note, MLS gaskets usually require a very fine RA surface finish - or they might leak. Check with the manufacturer before you have your decks trued up and decked.

https://www.jegs.com/i/Cometic-Gaske...0-040/10002/-1

Thanks for that. I'll call Cometic. The only gasket I can find on their site for a 221 is a drain plug gasket.
I'm looking through my junk for a used std bore piston, I'll assemble a used rod and piston into the block and see what that shows me for deck height. Like you say, it could well be different than theoretical.
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