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

SCORPION RACING PRODUCTS Rocker Arm, Race Series, Full Roller, Aluminium, 1.65 Ratio, For Chevrolet Small Block, 3/8 in. Stud, .050 Offset, Set of 16

SCORPION RACING PRODUCTS Rocker Arm, Race Series, Full Roller, Aluminium, 1.65 Ratio, For Chevrolet Small Block, 3/8 in. Stud, .050 Offset, Set of 16

$513.51

View
SCORPION RACING PRODUCTS Rocker Arm, Endurance Series, Pedestal Mount, Full Roller, Blue, Aluminium, 1.72 Ratio, For Ford SB, 5/16 in. B/On, Set of 16

SCORPION RACING PRODUCTS Rocker Arm, Endurance Series, Pedestal Mount, Full Roller, Blue, Aluminium, 1.72 Ratio, For Ford SB, 5/16 in. B/On, Set of 16

$913.36

View
JESEL Rocker Arm, Pedestal LS7 Exh/LT4 Int & Exh/1.90 Ratio - 3/8 Hardware, Each

JESEL Rocker Arm, Pedestal LS7 Exh/LT4 Int & Exh/1.90 Ratio - 3/8 Hardware, Each

$448.78

View
JESEL Rockers, Sportsman Series, 1.8/1.75 Ratio, 5.494/5.422 in. Valve, Dart BBC / Edel RPM XT, Kit

JESEL Rockers, Sportsman Series, 1.8/1.75 Ratio, 5.494/5.422 in. Valve, Dart BBC / Edel RPM XT, Kit

$2,664.63

View
JESEL Intake Rocker, Right, Edelbrock 14 Degree Big Vic Cyl 3-7-2-6, Each

JESEL Intake Rocker, Right, Edelbrock 14 Degree Big Vic Cyl 3-7-2-6, Each

$185.56

View
SCORPION RACING PRODUCTS Rocker Arm, Race Series, Full Roller, Blue, Aluminium, 1.7 Ratio, For Chevrolet Small Block, 3/8 In. Stud, .150 Right Offset,

SCORPION RACING PRODUCTS Rocker Arm, Race Series, Full Roller, Blue, Aluminium, 1.7 Ratio, For Chevrolet Small Block, 3/8 In. Stud, .150 Right Offset,

$33.66

View