Well, She cost me $400as is. $50.00 a month. whata steel. Its a 70' buick witha 350.4. I drove it home. It looked pretty ruff. Now I got a 74' 455.4 I'm rebuilding. Paid $100 for the used engine. To my surprise, the heads diddn't match the 74 block? Intake valves were 2.125, and exhaust were 1.755, see were i'm going with this. Stage 1. Heads are totaly redone, including plane, respring, Redoing hard valve seats, and a 3 point valve job. dropping in a mildly agressive cam, new lifters, and flattop pistons. So far, no bore, unless cylinders need it,?Hoping with these heads, Pistons and cam, I'll regain compression lost in this year and then some. I only hope to give some Local v8's some compitition. 0-60, has always been my goal. I've herd Buick is the car to do it. 510+ torque?