I have a 350 Chevy motor that has been rebuilt and is a .30 over bore. All new rings, bearings, gaskets, timing chain, oil pump, cam and lifters. It is a 4 bolt main with the 1 piece rear seal and is a complete short block. I also have a set of standard 260 hp heads and rocker arms and a new aluminum Summit intake for it included. Heads and top end of the motor need to be put on to be completed but I have the complete gasket set. This motor came out of a boat and was rebuilt to go into another boat unfortunately I don't need this motor so I am basically selling it for the cost of the parts. The cam is marine cam that is similiar to the new vortec 310 hp motors. This motor with these heads should make around 280hp. Asking $700.