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Super-Street Full Roller Rocker Arms for 1959-1986 Small Block Chevy [1.5 Ratio, 3/8 in. Stud]
InfoVehicle Info Needed
PROFORMPART NUMBER: 778-66907C

Super-Street Full Roller Rocker Arms for 1959-1986 Small Block Chevy [1.5 Ratio, 3/8 in. Stud]

$23499
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Aluminum Roller Rocker Arms for 1955-1985 Small Block Chevy [1.5 Ratio, 3/8 in. Stud]

555-20980

Aluminum Roller Rocker Arms for 1955-1985 Small Block Chevy [1.5 Ratio, 3/8 in. Stud]

$33999

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Chevy Small Block
Super-Street Full Roller Rocker Arms
  • Small Block Chevy
  • 1.5 Ratio
  • 3/8 in. Stud Mount
  • Narrow Body
  • Full Roller with Cage Bearing
  • 1.400 in. Maximum Spring Diameter
  • Polylock Nuts Included
  • Aluminum
  • Sold as a Set

    Stamped stock rockers drag on the valve stem and eat the tip, which costs power and eventually costs valves. A full roller rocker puts a needle bearing at the fulcrum and a roller on the tip, so the friction that was heating up your valvetrain turns back into horsepower and the stem tips stop wearing.

    Proform 66907C Super-Street Full Roller Rocker Arm Features:

    • Fits Small Block Chevy Gen 1 engines.
    • 1.5 rocker ratio.
    • 3/8 in. stud mount with a narrow body for valve cover clearance.
    • Full roller design with a cage bearing fulcrum and roller tip.
    • Clears springs up to 1.400 in. outside diameter.
    • Aluminum body.
    • Not self-aligning, for use with guideplates or guided rockers.
    • Polylock nuts and fasteners included.
    • Sold as a set.

      • 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 Height2.7
    Package Width12.0
    Package Length13.1
    Weight6.35 PG
    Part CategoryPerformance Parts
    Mounting StyleStud
    Maximum Spring Diameter1.400 in
    Stud Size 0.3750
    Nut StylePolylock
    QuantitySold as a Set
    MakeChevrolet
    Stud Diameter3/8 in
    Fasteners IncludedYes
    Engine Make/SizeChevy Small Block (262-400)
    Self-AligningNo
    Rocker Arm StyleFull Roller
    Rocker Arm Body StyleNarrow
    Ratio1.5
    Part FitmentDirect Fit
    Package Qty1
    Package TypeEA

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