71_dart_swinger
Well-Known Member
Does anybody know if I can fit double valve springs on 516 heads. I’ve got a hydraulic roller and it’s finally time to change the valve springs as it starts floating valves.motor is still in car I have a set of 452 heads and they will not go on those as the casting around the valve seal is too wide. ? Excuse the heads. They are just heads I’ve had from an rv motor I’ve got. The 452 heads. ? They fit around the exhaust valve. But not the intake.