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Proform Engine Rocker Arm - 66913C

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Engine Roller Rocker Arm Set
Manufacturer: Proform
Manufacturer part number: 66913C
$243.02
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Rid your engine of internal friction with roller-tipped rocker arms. The race-proven full cage bearing, fulcrum and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce wear and tear on valve stem tips. Precision machined to insure consistency and ratio accuracy. Each rocker arm has a laser etched PROFORM "P" logo. 16 anodized aluminum roller rockers and 16 poly locks are included in the kit.

Note: Engine Roller Rocker Arm Set

Products specifications

Attribute name Attribute value
Ratio 1.7
Applications Chevy Big Block Engines
Arm Style Full Roller
Feature/Benefit Rid your engine of internal friction with roller-tipped rocker arms.
Category Roller Rocker Arm Set
Body Style Standard
Fasteners Included Yes
Maximum Spring Diameter (In.) 1.500 in.
Mounting Style Stud
Self Aligning No
Stud Diameter (in.) 7/16 in.
Country of Origin CN
Quantity per Application 16
🚗 Compatible with
777 vehicles are compatible with this product · 1965–1999
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