Hey Jon, its the 235, original I think. The engine number stamps corresponds to the 1954 235 as well as the head and block numbers. I think the only think I got accurate on my estimates is the throttle bore. Yep its from Autoline and it looks great! The notes said R1- B base, but of course I had no clue what that meant and their (Rock Auto) vehicle match software showed a match for the 1954 235. Suggestions? Whats your thoughts on switching the base. Different throttle bores for sure.

Ron - - Dusty53
1954 Chevy 3604
In the Gallery Forum
"You can't dance with the Devil and then wonder why you're still in Hell."
"They will forget what you've said, and they will forget what you have done but they will never forget the way you made them feel."