LA - Cast cranks ( Dont throw away )

Yes, that has been related here many times by experienced folks. We used a stock 273 1968 cast crank in our 340 with a true 10:1 SCR and an estimated 375-400 peak HP, and a very torquey set-up.

Good to know I can normally find 318 engines very cheap have actually found running 5.2L (Non - Mangum engines for $150) .