Long story short. Valley pan cracked in two places. Water and debris entered engine. Disassembled engine. Machine shop said my bore was .003 too tight.(from original machining done at another shop) Caused a little scoring on pistons and cylinder walls.

Machine shop torque plate honed cylinders to correct bore size, coated piston skirts, polished crank.

The pistons that were in my 440 measured 4.390 That is .070 over bore. Is this a common thing to do? They are Venolia pistons with .990 pins.

With a 4.390 bore, what size bore head gasket should be used.

Many thanks!