Hi all, does anyone know the valve guide diameter on stock J heads?
I have some teflon valve stem seals which are 0.530 but I need to cut the guides which I don't want.
The heads haven't been taken apart yet and want to know first which seals fit (I know they are 11/32 valve stems).
Edit: also spring pocket size will be usefull to know which spring diameter fits.
Thanks all!