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Aluminum Roller Rockers for Oldsmobile 350-455 V8 with 1.6 Ratio & 7/16" Stud
InfoVehicle Info Needed
PROFORMPART NUMBER: 778-66860C

Aluminum Roller Rockers for Oldsmobile 350-455 V8 with 1.6 Ratio & 7/16" Stud

$25499
ShippingShips on 11/02/2026
Lowest PriceLowest Price Guarantee

Oldsmobile
    Aluminum Roller Rockers
  • Oldsmobile 350-455 V8
  • 1.6 Ratio
  • 7/16" 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 Height3.1
Package Width11.6
Package Length13.0
Weight6.8 PG
Part CategoryPerformance Parts
Arm FinishBlue anodized
Rocker Arm Ratio1.6
Shims IncludedNo
PositionN/A
Stud Size 0.4375
Rocker Arm Nut StylePolylock
QuantitySold as a set of 16
Rocker Arm Mounting StyleStud
Engine Make/SizeOlds 350-455
Self-AligningNo
Rocker Arm StyleFull roller
Rocker Arm Body StyleStandard
Arm MaterialAluminum
Ratio1.6
Part FitmentSemi Universal
Vendor Part Number66860C
Package Qty1
Package TypeEA

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