
Product Discontinued
PROFORMPART NUMBER: 778-66929
Heavy Duty Aluminum Roller Rockers for Small Block Chevy with 1.6 Ratio & 3/8" Stud
Currently Unavailable
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
Chevy Small Block
- Heavy Duty Aluminum Roller Rockers
- Small Block Chevy
- 1.6 Ratio
- 3/8" Stud
- 16/pkg
- Oversized Body And Fulcrum
- Triangulated Profile For Additional Strength
Reduce Valvetrain Wear With Roller Rockers
One of the best ways to rid an engine of internal friction is with a set of aluminum roller rocker arms. Proform's race-proven roller tips unleash horsepower, eliminate valve stem tip wear and tear, and extend valvetrain component life. These aluminum roller rockers are precisely machined to ensure ratio accuracy and consistency.
Part TypeRocker Arm
Product LineProform Aluminum Roller Rocker Arms
BrandPROFORM
Package Height1.8
Package Width8.0
Package Length20.8
Weight6.9 PG
Part CategoryPerformance Parts
Arm FinishBlue anodized
Rocker Arm Ratio1.6
Shims IncludedNo
PositionN/A
Stud Size 0.3750
Rocker Arm Nut StylePolylock
QuantitySold as a set of 16
Rocker Arm Mounting StyleStud
Engine Make/SizeChevy Small Block (262-400)
Self-AligningNo
Rocker Arm StyleFull roller
Rocker Arm Body StyleWide
Arm MaterialAluminum
Ratio1.6
Part FitmentSemi Universal
Vendor Part Number66929
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations





