Pro Series Rocker Arm Studs for Aluminum heads, exhaust studs only, 8 pieces

Pro Series Rocker Arm Studs for Aluminum heads, exhaust studs only, 8 piecesIf 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

Material: L19

and copy down the length of the fastener prior to and after installation

Both models feature a large diameter

Our special purpose washers are constructed from either premium chrome moly with a black oxide finish or polished ARP stainless steel and are hardened and parallel-ground

Following heat-treat

Simply followmanufacturer’s instructions

That’s whythe fastener experts at ARP have developed special bolts that are far superior to OEM hardware

Lengths are exact – designed to provide positive seating every time

This material is heat-treated to provide a tensile strength in the 200

You also can choose between standard hex head bolts or compact 12-point fasteners

It has approximately 200% the fatigue life of 8740 chrome moly steel and has a tensile strength of 220

The tremendous shock loads generated at launch by most any drag racing vehicle equipped with today’s sticky tire compounds or the acceleration and deceleration of oval track cars put considerable strain on the ring gear