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Aluminum Roller Rockers for Small Block Chevy with 1.6 Ratio & 3/8" Stud
InfoVehicle Info Needed
PROFORMPART NUMBER: 778-66908

Aluminum Roller Rockers for Small Block Chevy with 1.6 Ratio & 3/8" Stud

$19099
ShippingShips on Oct 15, 2026
Lowest PriceLowest Price Guarantee
Currently Unavailable

This product is currently not available. Please call customer service for assistance at 1-800-345-4545.

Best Value
Aluminum Roller Rocker Arms 1955-85 Small Block Chevy

555-20982

Aluminum Roller Rocker Arms 1955-85 Small Block Chevy

$34199

Chevy Small Block
    Aluminum Roller Rockers
  • Small Block Chevy
  • 1.6 Ratio
  • 3/8" Stud
  • 16/pkg

  • Rated for up to 450 lbs of Open Load Pressure
  • Precision machined
  • Lengthen Valve Train Component Life
  • Reduce Wear On Valve Stem Tips

    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 Height2.2
Package Width9.85
Package Length14.45
Weight5.98 PG
Part CategoryPerformance Parts
Arm FinishBlue anodized
Rocker Arm Ratio1.6
Includes ShimsNO
Shims IncludedNo
PositionN/A
Maximum Spring Diameter1.4 in (35.56 mm)
Stud Size 0.3750
Nut StylePolylock
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 StyleStandard
Arm MaterialAluminum
Ratio1.6
Part FitmentSemi Universal
Slot Width0.6 in (15.2 mm)
Vendor Part Number66908
Package Qty1
Package TypeEA
No Questions
No Reviews

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Some parts are not legal for use in California or other states with similar laws / regulations
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