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Upgraded Trunnion Retaining Ring for GM LS1, LS3 and LS7 Rocker Arms; This ring secures the upgraded trunnion/bearing assembly inside a factory GM LS rocker arm.

High Energy Aluminum 1.5 Ratio Roller Rocker Set for SBC 265-400 w/ 3/8" Stud; With a needle bearing fulcrum and a roller tip, our die cast aluminum rockers decrease friction and improve horsepower. Featuring a 1.5 ratio, these rockers fit Chevrolet 265-400 Small Blocks w/ 3/8" studs.

Ultra ARC Rocker Set w/ 1.6 Ratio Ford 289-351W and Olds V8 w/ 7/16" Stud; Constructed in the USA after FEA analysis, the Ultra ARC rocker withstands up to 700 lbs pressure while improving power and stability. These 19044 rockers feature a 1.6 ratio for use with 7/16" stud Ford 289, 302 and 351 Windsor.

Ultra Pro Magnum Rocker Arm Set w/ 1.6 Ratio for Ford 289-351W w/ 7/16" Stud; These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.6 ratio, these rockers fit Ford 289-351W with a 7/16" diameter stud.

High Energy Aluminum 1.6 Ratio Roller Rocker Set for SBC 265-400 w/ 7/16" Stud; With a needle bearing fulcrum and a roller tip, our die cast aluminum rockers decrease friction and improve horsepower. Featuring a 1.6 ratio, these rockers fit Chevrolet 265-400 Small Blocks w/ 7/16" studs.

High Energy Aluminum 1.6 Ratio Roller Rocker Set for Ford 289-351W w/ 3/8" Stud; With a needle bearing fulcrum and a roller tip, our die cast aluminum rockers decrease friction and improve horsepower. Featuring a 1.6 ratio, these rockers fit Ford 289-351W w/ 3/8" studs.

High Energy Aluminum 1.6 Ratio Roller Rocker Set AMC, SBF, Olds w/ 7/16" Stud; With a needle bearing fulcrum and a roller tip, our die cast aluminum rockers decrease friction and improve horsepower. These self-aligning rockers fit AMC 290-401, Ford 289-351W and Olds 260-455 w/ 7/16" studs.

Magnum Roller Rocker Arm Set w/ 1.6 Ratio for AMC, Ford and Oldsmobile 3/8" Stud; Perfect for street performance, our 8620 chromemoly steel Magnum roller tip rockers can handle up to 350 lbs of spring pressure. These 1442 rockers feature a 1.6 ratio for 3/8" stud AMC 290-401, non-rail Ford 289-351W and Olds 260-455.

Ultra Pro Magnum XD Rockers w/ 1.7 Ratio for Chevrolet Big Block w/ 7/16" Stud; Machined from 8650 steel with a billet pushrod seat insert, these Ultra Pro Magnum XD rockers can handle up to 1,000 lbs of spring pressure. These 1820 rockers feature a 1.7 ratio for use with 7/16" stud Chevrolet 396-454 Big Block.

High Energy Rocker Set w/ 1.5 Ratio for Chevrolet Small Block w/ 3/8" Stud; Perfect for stock or High Energy camshaft equipped engines, our High Energy rockers eliminate slop and feature a long slot for higher lift cams. These 1212 rockers feature a 1.5 ratio for 3/8" stud Chevrolet 265-400 Small Block.

Trunnion Upgrade Kit for GM LS7 and GEN V LT1; Our trunnion upgrade kit converts an OE GM LS7 and GEN V LT rocker into a captured trunnion for higher stability and stiffness. Compatible with stock geometry, our trunnion kit can be performed in 30 minutes with a C-clamp or a bench vise.

Rocker Arm Adjusting Nut Kit for Late Model Big Block Chevrolet; Complete with our 4514 studs, spacers and adjusting nuts, this kit adapts your late model Big Block Chevrolet engine to an adjustable valvetrain.