Big horsepower 318 builds

fishmens67 said
8,000 is a number I threw out. Seems like 7300+ would be the magic number.
A grenade comes to mind. lol

I know a guy that raced a 318 in a "stocker" truck. He spun it 7200 rpms for 4 years, cast crank, and it held together. Just putting it out there. Oh, I don't know what the hp was, but it went 12's at over 4000 lbs.