Thin head gaskets for stock 318 anyone?

[bnichols]

Anyone make a thin head gasket for a standard bore 318?

 

[pishta]

Not any more, even the 318 gaskets are 4.180 or bigger to cover the 340-360 bore. You may find an old NOS set somewhere.
Cylinder Bore Diameter (IN) 4.180...this Victor REinz is even listed as a 273 compatible!

 

[70aarcuda]

Mr gasket 1121g

 

[Garrett Ellison]

The smallest bore lowest volume gasket available
DODGE Cometic C5633-027 Cometic MLS Head Gaskets | Summit Racing

 

[bnichols]

Thanks guys

 

[Dan the man]

The smallest bore lowest volume gasket available
DODGE Cometic C5633-027 Cometic MLS Head Gaskets | Summit Racing

The OP didn't ask about bore gasket diameter, he asked about the thinnest head gasket available, I've heard of a 0.028" think headgasket, while I think that the 0.039" is the most popular one.

 

[AJ/FormS]

Just bore it to 4.00 and use a 360 gasket; oh-yeah

At .028 thickness, the difference between 4.180 bore and 3.930 bore is 1.327cc. But it leaves you with a huge 12.35 lineal inches of very sharp cast iron edge to deal with, and not to forget what you set on top of that.

 

[Syleng1]

“IF” you trust your machinist and they need to be a perfectionist- No gasket or metal shim. Spray tack and torque like some did back in the day. Metal to metal baby. ARP head studs a must.