ARP 134-7124 Rocker Arm Stud Kit for 3/8 Rocker Arm Stud Kit (Note 6) ymm_26 or 9/16”x18 fittings and includes

or 9/16”x18 fittings and includes a 1/8 NPT port for a fuel pressure gauge or pressure sensor pick up

9 mm) diameter

The system is split in 2 codes only because of packaging reasons

as they are intended for closed track use only

The diffuser allows the use of BMW´s tow hook

ARP 134-7124 Rocker Arm Stud Kit for 3/8 Rocker Arm Stud Kit (Note 6) ymm_26 or 9/16”x18 fittings and includesIf 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. thread pitch to thread pitch. They run in straight and true. Lengths are exact designed to provide positive seating every time. An extra large radius base offers greater resistance to flex.