1971 gasket thickness

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Apr 19, 2005 | 08:42 PM

Max 93

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From: New Berlin, WI USA

1971 gasket thickness

anyone know what the thickness of a stock head gasket is on a 1971, 2bbl, 9.0 to 1 ,350 out of a Monte Carlo if that makes a differance.

Apr 20, 2005 | 07:10 PM

markinkc69z

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From: Shawnee Kansas

Re: 1971 gasket thickness

.018" I think. Steel shim for sure. If it helps the MrGasket steel shims should be a nearly exact replacement. I had to take the head off my stock '72 350 2bbl Monte and that's what I used.

Apr 20, 2005 | 07:48 PM

Max 93

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Re: 1971 gasket thickness

thanks, I wasn't sure if they used a shim or something thicker

Apr 21, 2005 | 07:27 PM

rskrause

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Re: 1971 gasket thickness

Sheeit, that is damn obscure question!

Rich

Apr 21, 2005 | 08:05 PM

Stephen 87 IROC

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Re: 1971 gasket thickness

If it's a steel shim like most production head gaskets were, I'd also say .018".

Apr 21, 2005 | 09:03 PM

markinkc69z

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From: Shawnee Kansas

Re: 1971 gasket thickness

Quote:

Originally Posted by rskrause

Sheeit, that is damn obscure question!

Rich

LOL! you crack me up!

Apr 21, 2005 | 10:02 PM

Max 93

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From: New Berlin, WI USA

Re: 1971 gasket thickness

Quote:

Originally Posted by rskrause

Sheeit, that is damn obscure question!

Rich

Then how about this one.... The stock 350 with .018 head gasket and 76cc heads has 8.5 to 1 compression. If I switch to 67cc heads using the same type of head gasket, what is the new compression?

Apr 21, 2005 | 10:57 PM

rskrause

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From: Buffalo, New York

Re: 1971 gasket thickness

Quote:

Originally Posted by Max 93

Then how about this one.... The stock 350 with .018 head gasket and 76cc heads has 8.5 to 1 compression. If I switch to 67cc heads using the same type of head gasket, what is the new compression?

Easy one. It will go up to ~9.4:1

(76+15/67+15)*8.5=~9.4

Rich