did someone put longer valves in heads/ if they came off a one ton truck they could have had rotators on both intake and exhaust valves
they sit lower with 4 grouve keepers on both valves
with everything mismatched
To the best of my knowledge, these are factory heads from this motor, from this car. valvetrain was redone by a shop 15 years ago here in MI. I would assume if there were longer valves this would have been an issue from day one.
As I went through it yesterday, II cleaned up the rockers very well, and did not see any 'new' interference marks; they look like hand grinds, and have oxidized over. I'm not sure it's in the valvetrain any longer. I see no witness marks on any of the retainers/springs either.
