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Pioneer Automotive Industries Rocker Arm. Designed as a direct OEM replacement for reliable engine performance.

Ultra Pro Magnum Self-Aligning Rocker Arm Set w/ 1.6 Ratio for V6 w/ 3/8" 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 '88+ Chevrolet V6 with a 3/8" diameter stud.

Ultra ARC Rocker Set w/ 1.73 Ratio for Ford 351C, 429-460 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 19045 rockers feature a 1.73 ratio for use with 7/16" stud Ford 351C and 429-460.

Hi-Tech Polylock Set for 1/2" Stud Ultra Pro Magnum Rockers; The best polylock for high end race applications, these Hi-Tech polylocks are designed for 1/2" Ultra Pro Magnum and Ultra Pro Magnum XD rockers.

Rocker, 1.65 x 7/16

Pioneer Automotive Industries Rocker Arm. Designed as a direct OEM replacement for reliable engine performance.

Pioneer Automotive Industries Rocker Arm Plug. Designed as a direct OEM replacement for reliable engine performance.

Ultra Pro Magnum Self-Aligning Rocker Arm Set w/ 1.6 Ratio for SBC w/ 3/8" 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 '88+ Chevrolet Small Blocks with a 3/8" diameter stud.

Ultra ARC Rocker w/ 1.72 Ratio for Ford 289-351W w/ 3/8" Stud; Constructed in the USA after FEA analysis, the Ultra ARC rocker withstands up to 700 lbs pressure while improving power and stability. This 19048 rocker features a 1.72 ratio for use with 3/8" stud Ford 289, 302 and 351 Windsor.

Stock Replacement Rocker Arm Kit

Pioneer Automotive Industries H/P Arm Fastener. Designed as a direct OEM replacement for reliable engine performance.