Pro Series Rocker Arm Studs for SBC GEN III/IV LS Series (non adjustable), excluding LS7

Pro Series Rocker Arm Studs for SBC GEN III/IV LS Series (non adjustable), excluding LS7If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in you knew from the beginning that the rocker geometry was going to be inconsistent all over the place. ARP rocker studs are concentric within . 005 T. I. R. threadpitch to thread pitch. They run in straight and true. Lengths are exact designed to provide positive seating every time. An extralarge radius base offers greater resistance to flex. Available

the compact 12-point inut lets you easily slip a socket close to the pipe

They’re application-specific

HIGH PERFORMANCE SERIESHigh Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates theneed for valve train removal to facilitate cylinder head retorquing

while the bolt kits come with washers

This procedureinvolves about ten very slight cuts and results in an exceptionallystraight part

ARP uses a unique manufacturingprocess where the alignment sleeve is roll formed onto the shaft(not welded or pinned)

drive ratchet orbreaker bar to facilitate rotating the crank assembly

Pro Series main bolts are application-specific

all ARP main bolts feature a reduced renching head

ARP has developed these sophisticated and durable pushrods

Excellent for E

All Pro Series head bolts have areduced wrenching hex or 12-point head and wide area flange to permit the use of larger diameter valve springs and eliminate theneed for valve train removal during cylinder head retorquing