ARP Rocker Arm Nut - 3/8-24 in Thread - 0.600 in Shank Diameter - 1.200 in Long - Chromoly - Black Oxide - Aluminum Rockers - Set of 16 HSSML11SASM61 bolt-in replacement for the factory

bolt-in replacement for the factory manifold and is even drilled and tapped to accept the most popular EGT probes

547" long Magnum pushrods feature a durable

Rated injector flow: 120 lb/hr @ 43 PSI

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Our ALL-NEW Extreme-Flow EFI Regulator now comes with -12 ports

ARP Rocker Arm Nut - 3/8-24 in Thread - 0.600 in Shank Diameter - 1.200 in Long - Chromoly - Black Oxide - Aluminum Rockers - Set of 16 HSSML11SASM61 bolt-in replacement for the factoryA rocker arm adjuster that doesn't require special tools and won't work loose. Threads on the heat treated Perma Loc Adjusters are machined exactly perpendicular to the adjuster bottom. a set screw is also machined flush on the bottom. All of these features help eliminate setting valve lash on a regular basis. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Rocker Arm Nut 3 8 24 in Thread