School me, 3.79 strokers

Hot rodding was born by guys swapping parts around to go faster. Guys used to race Model T Ford's with Chevy heads back 95 years ago.

I don't like the 4" arm... not a good history on oval tracks at 7,000 rpms. My SB has a 3.79... I don't like spinning any engine over 7k since I'd go broke trying to repair it...doing that right now .