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The engine is a 71 318, RHS X-Heads, KB pistons, a Lunati cam, Hughes rockers, Melling HV oil pump, Kevoco Pan and pickup. The typical machine work was done and every clearance was checked when I assembled it. All the rods and mains were between .0015 and .002, but I don’t remember the...

This is probably not a very common combination as most people wouldn't consider RHS heads for a 318 in the first place, but that's a story for a different thread. The question is whether or not the domed Keith Black pistons will work with the as-cast RHS X-Heads. The answer is kinda. There...

This is the first time I'm using a dome piston and want to be sure my procedure and math are correct. The engine in question is a .030 over 318 (3.940 bore) and the pistons are KB 399's: 65 - Head CC 2.2 - Deck (piston is .011 in the hole at TDC) 7.1 - Compressed Gasket Volume 1 - Above Top...

Does anyone have a source for head gaskets for a 273 that doesn't have the 340 bore? TIA

These are supposed to be 340 heads, but instead of an X or a J there is a U cast into the area between the plugs. Any ideas?