Head gasket installation

cederholm

cederholm

Senior Member
More questions from me. How are you guys installing “sealing” your head gaskets. I have new Feltpro with aluminum heads and a freshly machined block.

Thanks,
Carl


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Didn’t use anything on the gaskets(composite) , but did put Aviation Permatex on the head bolt threads.
 
Of course, I was thinking of the gasket surfaces only; I also use "Permatex" thread sealer on my head bolts.
 
I would say that copper head gaskets are not a good choice for an engine with aluminum heads (electrolysis problems).
 
Also, don't you want the small water hole to the front on both gaskets? Been a few yrs since I had to pull heads. But maybe I'm thinking Y-block head gaskets....
 
I see the problem here. Both you and "Ronnie Roadster" are serious racers. You exist in a whole different world than most of us on here. Look at it this way : The engines in top fuel dragsters are basically completely rebuilt between every round; does this mean that those of us with regular "street" engines should do the same? I think not.

Also, composite big bore gaskets are readily available. My latest build has a 3 5/16" bore and I had no problem finding gaskets. It also has a MAX-1, Edmunds heads and upgraded ignition and carburation systems. I don't consider it a stock engine.

I try to buy all of the reasonably priced flathead finned aluminum heads I can. I pass on the majority of heads I find because of excessive corrosion.
 
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I owned (years ago) several early flatheads with factory equipped aluminum heads and composite gaskets.
About 60% of them corroded and leaked and had to be replaced (with used iron ones) from the junk yard.
Just wonder what caused the corrosion considering that they had composite gaskets.
 
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