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Picture of Proform Engine Rocker Arm - 66861C

Proform Engine Rocker Arm - 66861C

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Roller Rocker Arm Set
Manufacturer: Proform
Manufacturer part number: 66861C
$239.99
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Rid your engine of internal friction with roller-tipped rocker arms. The race-proven full needle 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. 16 extruded aluminum roller rockers and 16 poly locks.

Note: Roller Rocker Arm Set

Products specifications

Attribute name Attribute value
Ratio 1.73
Applications Ford 302 Boss, 351C, 429 and 460 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.
Grade Type Performance
Material Aluminum
Maximum Spring Outside Diameter 1.5
Mounting Type Stud
Rocker Arm Finish Blue Annodized
Rocker Arm Material Aluminum
Rocker Arm Nut Type Polylock
Rocker Arm Ratio 1.73
Rocker Arm Type Full Roller
Slot Width 0.6
Country of Origin CN
Quantity per Application 16
🚗 Compatible with
284 vehicles are compatible with this product · 1968–1997
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