Going to get around to do some minor head cleaning soon but i have a question about rockers. The 2 spare engines i now have (55 235 and a 56 261) have rocker assemblies but they are worn. The rocker shaft is very badly worn on one and the other is fair. I want to just replace the assembly with a new setup for the 261 build. The only place i can find that lists new rockers is Jim Carter. His rockers are listed as being for 59-62. I was wondering what the difference in rockers was thru the years and if his would work.

Rocker web page