Hey guys-
So I found a '61 235 head with the 3836848 casting number and good rocker assembly at my favorite local yard. I'd like to have it rebuilt for use on my '59 261 block for that nice 9:1 compression ratio I've been reading about. I was considering taking the exhaust valve rotators from the original 261 (3836850) head and using them on the 848, and maybe the beefier springs as well. Is this worthwhile?
I've read the 261 valve rocker arms are supposed to be beefier, but those on the 235's I've seen look stronger to me- with a tall spine along the top length of the arm, while on the 261 they are flat and thin on top.
Either way I'll probably use the 235 rockers because they are in better shape. I bought new valves, guides, seals from LMC- (Not stellite- I don't mind the lead additive). Do the springs typically need to be replaced at the same time?
