Technical > Matt Shaff's Engine Shop

thi copper head gaskets

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wideopen231:
What is thinnest head gasket you have run or know of being ran w/o a big failure?

JEFF/21C:
a chevy shim gasket for small blocks .016-.017-.018 they varied on 327 and 350 before we started decking the block or were not allowed to deck(rules) even stacked two to get proper cleareance, never had any problem

JEFF/21C:
sorry I didn't see copper!

wideopen231:
Jeff thats ok I just noticed the N in thin missing on heading.LOL

wideopen231:
 I have posted this on cpl other sites. Most think .040 is thinest they would go. Hvae been told by two they are not saying a .021 gasket will not work, but they would be scared to try. I have been called lots of things but scared to try something has never been one of them. Guess we are going to try a set. Lil brother has cnc router and making a set cost me nothing. Plus with injection and no  boost I doubt I am going to burn a head or block iof one cuts loose. Hey I have bruned both and even won a national event with block fill with MArine tex and hand filed flat.

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