If it is a 59-62 235 it NEEDS the rockers that are for a higher pressure rocker system. If it has the rocker for a low pressure engine it will put too much oil on the valve train. I had that problem when I rebuilt my 59 235. I was smoking at stop lights and had oil in my exhaust pipes. Once it put the proper rocker on it, it does not smoke or have oil in my exhaust. The low pressure rockers have the groove in line with the hole in the top of the rocker, the high pressure rockers the groove is offset to the top hole. Basically I was flooding my top end and pulling oil around my valve seals.
Last edited by lumbersawyer; 09/12/2024 1:42 AM.
