Need valve springs and retainers?
arp head studs
I would go with upgraded springs and retainters with 272 if you plan on going above 7000 rpm. David says the springs are on the weak side. They have a nice set which I purchased for 200 bones .
I would go with upgraded springs and retainters with 272 if you plan on going above 7000 rpm. David says the springs are on the weak side. They have a nice set which I purchased for 200 bones .


