The 403 is the small block like a 350 Olds. The 455 is wider & heavier. The 403 is a great engine for it,s size & weight. I would put a mild cam in with an aluminum intake & Q-jet carb. Dual exhaust with 2 1/4 in pipes. Should run great.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne Super In the Gallery Forum
