Built to outlast and outperform in accuracy and strength, Ultra Pro Magnum XD roller rocker arms are engineered from durable 8650 steel and include a machined billet pushrod seat insert for a wide range of super accurate ratios. A unique and wide ratio range to fit almost any popular application from 1.5 to 1.8 in 0.5 in. increments for Chevy and 1.6 to 1.73 for various Ford applications is available. These Ultra Pro Magnum XD rockers are fully rebuildable and boast precision-sorted needle bearings and hardened roller tips. And, they work with most diameter springs and retainers. The XD design utilizes advanced FEA and CAD design and development to improve strength, stiffness and MOI (moment of inertia) optimization for drag and circle track applications.

More From This Category

COMP Cams Rocker Arm, Ultra Pro Magnum, Full Roller, Chromoly Steel, Self-Aligning 1.6 Ratio, SBC/V6 3/8 in. Stud, Set of 12

COMP Cams Rocker Arm, Ultra Pro Magnum, Full Roller, Chromoly Steel, Self-Aligning 1.6 Ratio, SBC/V6 3/8 in. Stud, Set of 12

$719.01

PRW Rocker Arms, Platinium Pro, Super Duty, Stud Mount, Full Roller, Aluminium, Black Anodised, 1.73 Ratio, 7/16 in. Stud, For Ford Boss 351C-M, Each

PRW Rocker Arms, Platinium Pro, Super Duty, Stud Mount, Full Roller, Aluminium, Black Anodised, 1.73 Ratio, 7/16 in. Stud, For Ford Boss 351C-M, Each

$61.16

CROWCAMS Rocker Set, For Holden V8, 1.65RR 7/16 Stud, 600lb Max Spring Pressure

CROWCAMS Rocker Set, For Holden V8, 1.65RR 7/16 Stud, 600lb Max Spring Pressure

$407.13

AFR Rocker, T&D BBC 18° Shaft Mount, 1.7 - 1.7 Ratio

AFR Rocker, T&D BBC 18° Shaft Mount, 1.7 - 1.7 Ratio

$5,937.86

Trick Flow Rocker Arm Studs, 7/16-20 in. (8) 3 in. Studs, (8) 3 1/2 in. Studs, For Ford, 429/460, A460 Head, Set of 16

Trick Flow Rocker Arm Studs, 7/16-20 in. (8) 3 in. Studs, (8) 3 1/2 in. Studs, For Ford, 429/460, A460 Head, Set of 16

$316.10

COMP Cams Rocker Arm, Full Roller, High Energy, 1.7 Ratio, BBC 396-454 w/ 7/16 in. Stud, Aluminium, Natural, Each

COMP Cams Rocker Arm, Full Roller, High Energy, 1.7 Ratio, BBC 396-454 w/ 7/16 in. Stud, Aluminium, Natural, Each

$48.52