Head gasket question
Thread Starter
Drifting
Joined: Sep 2000
Posts: 1,616
Likes: 2
From: Round Rock, Texas, USA Texas
Head gasket question
I'm putting a '74 454 together for the "nothing fancy"'77 - I had the block done and the cylinder head surface shaved either .020 or .030 - I have since found a set of rebuilt cylinders heads with either .020 or .030 - I forget which is which, but the total is .050.
I'm concerned the intake won't fit right and wonder if a .041 head gasket will make any difference? Or do they make anything thicker? .050's? or should I plan on selling these heads a getting new?
Machine shop told me BBC heads aren't as easy to shave on the intake surface as SBC heads are.
I'm concerned the intake won't fit right and wonder if a .041 head gasket will make any difference? Or do they make anything thicker? .050's? or should I plan on selling these heads a getting new?
Machine shop told me BBC heads aren't as easy to shave on the intake surface as SBC heads are.
Burning Brakes
Joined: Dec 2000
Posts: 1,183
Likes: 2
From: Des Moines Iowa
Re: Head gasket question (rrent)
Do you know how thick the OEM head gasket used by Chev. is????? I know you can get S/B head gaskets up to .050", not sure about big blocks.
I took .040 off my small block heads, then went to a .039" from .017" steel shim head gasket with no intake fitting problems, but then that was only a net reduction of .018", so not sure about you .050" reduction, which is pretty significant.
I took .040 off my small block heads, then went to a .039" from .017" steel shim head gasket with no intake fitting problems, but then that was only a net reduction of .018", so not sure about you .050" reduction, which is pretty significant.
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Re: Head gasket question (rrent)
I'm not a machinest. But when I had angle milled heads. I had to have the intake manifold it's self milled to get the correct fit.
I'm wondering if you could do the same?
I'm wondering if you could do the same?
Thread Starter
Drifting
Joined: Sep 2000
Posts: 1,616
Likes: 2
From: Round Rock, Texas, USA Texas
Re: Head gasket question (rrent)
I could get the manifold milled, but then I'd only be able to use this manifold with these heads. I think I'll call a machine shop or two and see what I can come up with.
