91 vette aluminum head question??
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Pete K. is right, of course. The kicker is, the stud has two different sized threads. The threads that screw into the heads are 7/16ths". If you are merely buying rocker arms, you need them for 3/8ths" studs. If you are contemplating changing to 7/16ths" studs, it CAN be as simple as unscrewing the old and screwing in the new.
RACE ON!!!
RACE ON!!!
