Greetings, i just repowered my FJ with a rebuilt SBC stroked to 383, it has rebuilt stock vortec heads, a mild cam and non-roller rocker arms. Ever since i first fired it up it has had valve noise, light chatter-ticking that comes from the rocker arms not staying "straight". They work themselves to a slight angle and some will actually rub on the valve cover! I've adjusted the lash with the engine running (additional 1/2 turn on the locknuts from zero lash) and rechecked it after some run time. I've asked around locally but people i have talked to have not run into this problem before. The i trust the guy i bought the engine from (family member) but he is not sure what is causing this either.
The only thing i can think of doing at this point is installing pushrod guide plates but that seems like a patch on the problem to me. Any and all advice would be greatly appreciated!
The only thing i can think of doing at this point is installing pushrod guide plates but that seems like a patch on the problem to me. Any and all advice would be greatly appreciated!
