Larry Jones’s dad has a 4.75” with an aftermarket block in his 700+HP GTO. Mostly a street build, I think BES built it.
Calvin Hill might be the other 4.75 big cid drag and drive? Not sure?
4.75 in a Pontiac not common at all.
4.5 has been fairly popular in the SD455 and the 71&72 455 HO’s at one of the local shops (Willard Machine). I think Rotella’s in Omaha have at least one, mild street builds though.
Last edited by Jay S; 02-16-2026 at 02:00 PM.
|