Top 20 Best Selling Nuts & Bolts Rocker Arms & Parts Replacement Parts (2018)




Exhaust Header Bolt KitUniversal fitHex heads, order ARP 400-1209 for 12-point headsStainless steel, order ARP 100-1109 for black oxide finish3/8 diameter, takes 5/16 wrench, 1.0 long, set of 12, ... more info

The Crane Adjusting Nuts are specifically designed for your VTS bar (stud girdle) in applications with Crane's roller tip, needle-bearing aluminium rocker arms. They feature high quality metal bar stock, which is precision-machined and heat-treated for ma ... more info


Pro Series Rocker Arm Stud Kit, 7/16-20 in. thread, 2.00 in. ... more info


Exhaust Header Bolt KitFits small block Chevrolet V8s12-point heads, order ARP 400-1101 for hex headsStainless steel, order ARP 100-1201 for black oxide finish ... more info



Flare Nut, 3/8-24 7/16 Wrenching, 12pt flange nut, 10 Piece Skin-Pack ... more info

High Performance Rocker Arm StudsFits most small block Ford with screw in studs3/8-24 Upper thread, 7/16-14 lower threadSet of 16 ... more info



Crane Cams XR-i Ignition System for Ford features Crane optical trigger conversion kits. They are designed to convert a points-type distributor into a precision optically triggered system. They feature stable timing with precise settings, eliminate spark ... more info

High Performance Rocker Arm StudsFits small block Ford with 7/16 screw in studsBase thread: 7/16-14Shank thread: 7/16-20Overall stud length: 1.9 ... more info



Federal-Mogul Sealed Power Engine Rocker Arm Nut MR-1751 ... more info




Crane Cams Energizer Rocker Arm for Ford V8 Engine, (Set of 16) features ordinary stamped steel (or in some instances cast iron) rockers. They rotate on a pivot ball and have substantial friction, while also scrubbing the tip of the valve. The roller lift ... more info

High Performance Rocker Arm Stud KitFits General Motors 4.3L Vortec V6Upper thread: 3/8-24, lower thread: M10 x M1.50These studs are not to be used with OEM-style self-locking nuts.Use only ARP Perma-Loc adjusters, sold separately.Full set ... more info




One of the more aggravating things found in many high performance engines is constantly having to re-adjust rocker arms. Until ARP introduced the patented Perma-Loc rocker arm adjuster, there wasn't a poly lock on the market that you didn't have to conti ... more info



If 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. The solution? ARP quality. ARP rocker studs are ... more info

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