Engine built by Skull Performance Engines in Boulder City NV.
Olds 455 bored 0.30 over and balanced. Clay Smith cam, Edelbrock Ram Air Gap, Quick Fuel 750 marine carb, Mallory Marine Ignition, Glenwood exhaust. Oil restriction installed and Hardin thermostat system. Billet mechanical fuel pump. Everything on engine is new out of box. Never installed in boat and still on stand.
I know somebody will ask, I believe the heads are F. But I need to double check.
This is a very nice slightly modified Olds 455 for jet boat. Take as is, including Hardin mounts. Or take as a long block.
I cannot complete my project boat and would like to sell engine. Please contact for more info or questions. Make an offer.