Rocker Arms

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 1817 rockers feature a 1.7 ratio for use with 7/16" stud Chevrolet 265-400 Small Block.CatalogUser 1

With upgraded trunnions that are secured by snap rings along with a black oxide finish, our upgraded OE LS rockers offer higher lift capacity than stock. Featuring a 1.7 ratio, these 1478 rockers fit LS3 engines.CatalogUser 1This Part...

Constructed in the USA after FEA analysis, the Ultra Gold ARC rocker withstands up to 700 lbs pressure while improving power and stability. These 19054 rockers feature a 1.7 ratio for use with 5/16" '77-'92 Ford 289 and 351 Windsor.CatalogUser 1This Part...

Constructed in the USA after FEA analysis, the Ultra Gold ARC rocker withstands up to 700 lbs pressure while improving power and stability. These 19052 rockers feature a 1.6 ratio for use with 5/16" '77-'92 Ford 289 and 351 Windsor.CatalogUser 1This Part...

Constructed in the USA after FEA analysis, the Ultra Gold ARC rocker withstands up to 700 lbs pressure while improving power and stability. These 19049 rockers feature a 1.72 ratio for use with 7/16" stud Ford 289, 302 and 351 Windsor.CatalogUser 1

Constructed in the USA after FEA analysis, the Ultra Gold ARC rocker withstands up to 700 lbs pressure while improving power and stability. These 19048 rockers feature a 1.72 ratio for use with 3/8" stud Ford 289, 302 and 351 Windsor.CatalogUser 1

Constructed in the USA after FEA analysis, the Ultra Gold ARC rocker withstands up to 700 lbs pressure while improving power and stability. These 19045 rockers feature a 1.73 ratio for use with 7/16" stud Ford 351C and 429-460.CatalogUser 1

Constructed in the USA after FEA analysis, the Ultra Gold ARC rocker withstands up to 700 lbs pressure while improving power and stability. These 19018 rockers feature a 1.6 ratio for use with 3/8" stud '88+ Chevrolet 265-400 Small Block.CatalogUser 1

Constructed in the USA after FEA analysis, the Ultra Gold ARC rocker withstands up to 700 lbs pressure while adding power and stability. These 19015 self-aligning rockers have a 1.5 ratio for 3/8" stud '88+ Chevrolet 265-400 Small Block.CatalogUser 1

Perfect for initial break-in, these Ultra-Gold ARC rockers for Chevrolet Small Blocks reduce valve lift by limiting the rocker ratio to 1.3. A great asset to engine builders who prefer to limit the valve lift over removing an inner spring.CatalogUser 1

Ultra Pro Magnum XD Rockers w/ 1.8 Ratio for Ford Boss 302, 351C, 429-460 7/16"User 1

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 1834 rockers feature a 1.7 ratio for use with 7/16" stud Ford 289, 302 and 351 Windsor.CatalogUser 1