Complete Motor, disassembled 2/5/07 all surfaces have been greased and parts bagged to protect them from elements. I lost a rod bearing that took out the crank and pistons, less then 50 hours on the motor, it is "F5" Block Casting that was bored .030. The heads are "K" casting (the correct marine heads) that are in good shape. The boat was never in salt water, includes the square Hardin Marine exhaust manifolds, Make offer. I am done with Olds and looking for a replacement Chevy motor and might be willing to trade. Photos upon request