1967 427 4 bolt standard bore block casting number 3904351 dated C-31-7 stamped T0501JE 7118233. This is a Corvette 435HP tri power block and has been cleaned and magged and the cylinders are very clean with no damage. Also included is the standard 6223 steel crankshaft. It was greased down and should polish up. Shipping is not a problem if you cannot pick up. Any questions contact me at 330-770-2517.