[Verne_Frantz]

Just for added interest, the '63 Chevrolet engineering specs say to add 45lbs to the curb weight for a 409 over a 283. That of course would have to include the dual exhaust and larger radiator....and another quart of oil!

In an interview with Dick Keinath, the guy who got to use a blank sheet of paper to design the mystery motor, he stated he was also given the "aluminum project" development, but he only spoke of aluminum heads and intakes for both the SB Corvette and the Z-11. He never mentioned a block. Although we know an aluminum 377cid was built. It's still a mystery.

I agree with you. I think the General would be doing a lot better today if they had a few of the old gearheads in key positions. The cars we love were designed by stylists and built by engineers. Today's Chevys are designed by lawyers and built by accountants.

Verne