I can't identify my engine. I just bought a 74 chevy truck that had a (i think) 454 dropped in it. It keeps tearing up the starter and I think I am getting the wrong one. All the numbering I can find is 4308 punched in the front of the block and "PASS", "HI PERF" on the driverside near bell housing. I also found "GM" "00NV1" on the back driverside above the bell housing, Any help? Please