Have you ever had problems adjusting rocker arms on your car? Kiss those problems goodbye with these rocker arm shim kits from Ford Racing. They are to be used with all bolt-down style roller rocker arms to obtain correct lifter preload. These kits...

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

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

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.

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

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.

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.

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

Constructed in the USA after FEA analysis, the Ultra Gold 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.

Constructed in the USA after FEA analysis, the Ultra Gold ARC rocker withstands up to 700 lbs pressure while improving power and stability. This 19044 rocker features a 1.6 ratio for use with 7/16" stud Ford 289, 302 and 351 Windsor.

Constructed in the USA after FEA analysis, the Ultra Gold ARC rocker withstands up to 700 lbs pressure while improving power and stability. These 19043 rockers feature a 1.6 ratio for use with 3/8" stud Ford 289, 302 and 351 Windsor.

Constructed in the USA after FEA analysis, the Ultra Gold ARC rocker withstands up to 700 lbs pressure while improving power and stability. This 19043 rocker features a 1.6 ratio for use with 3/8" stud Ford 289, 302 and 351 Windsor.

Ultra Pro Magnum XD Rocker Set 8 1.8 R for Ford Boss 302, 351C, 429-460 7/16"

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

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

Ultra Pro Magnum XD Rocker Set of 8 1.7 Ratio for Ford 289/302/351W 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 1834 rockers feature a 1.7 ratio for use with 7/16" stud Ford 289, 302 and 351 Windsor.

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. This 1834 rocker features a 1.7 ratio for use with 7/16" stud Ford 289, 302 and 351 Windsor.

Ultra Pro Magnum XD Rocker Set of 8 w/ 1.7 Ratio for Ford 289/302/351W 3/8" 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 1833 rockers feature a 1.7 ratio for use with 3/8" stud Ford 289, 302 and 351 Windsor.