model B 4" head gasket info needed
 

got model B bored to 125 thou to 4" what head gasket to use ? the gasket I used leaked water into #3 cyl.

Re: model B 4" head gasket info needed
 

Long shot but is there any chance someone sold you a Model A head gasket by mistake? If you are not sure of the difference post pictures.

Charlie Stephens

Re: model B 4" head gasket info needed
 

Also what head are you using.


Bob

Re: model B 4" head gasket info needed
 

Best Gaskets, graphite are available either as a Model A or a different one for Model B.

Re: model B 4" head gasket info needed
 

At one time 'big bore' and 'big valve' gaskets were available. Contact Egge Machine to see if they still are. Also you might need to plug the 4 small holes in the B block??? Plug flush with the deck surface to support the gasket.

Re: model B 4" head gasket info needed
 

B block bored to 4".stock C head all model B engine

Re: model B 4" head gasket info needed
 

Locate the gasket very accurately on the head and see if the fire ring hangs over anywhere.
Then locate the gasket on the block and check for the same.
If it hangs out, it won't work. The cure is a different head.
If it hangs out on the block, try a different gasket.
I have used the standard copper gasket several times with a 4.030 bore race engines.