Will 1954 water pump from a Belair fit in a 1953 1/2 ton with a 54 235 engine? I have a 53 1/2 ton and installed what I thought was 55 235 engine. Minimal clearance between fan and radiator. Hit a bump and fan tip cut into radiator. Unable to locate or see casting number on block but another number behind distributor ends " 54Z " so assuming I have a 54..Is there a difference between a car and truck water pump? THanks, Scott