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Proform 66931

Small Block Chevy Heavy Duty Roller Rockers 1.6 Ratio



Proform 66931

Part Number: 778-66931

Small Block Chevy Heavy Duty Roller Rockers
  • 1.6 Ratio
  • 7/16" Stud
  • 16/pkg
  • $161.99
    Ships
    FREE Shipping
    Proform 66931 Small Block Chevy Heavy Duty Roller Rockers 1.6 Ratio $161.99

    Proform 66931 Details

    Small Block Chevy

  • Oversized Body And Fulcrum
  • Triangulated Profile For Additional Strength

  • Specifications:

    Engine Make/Size
    Chevy Small Block (262-400)
    Stud Size
    0.4375
    Ratio
    1.6
    Position
    N/A
    Arm Finish
    Blue anodized
    Arm Material
    Aluminum
    Quantity
    Sold as a set of 16
    Rocker Arm Body Style
    Wide
    Rocker Arm Mounting Style
    Stud
    Rocker Arm Nut Style
    Polylock
    Rocker Arm Ratio
    1.6
    Rocker Arm Style
    Full roller
    Self-Aligning
    No
    Shims Included
    No
    Manufacturer's Part Number:
    66931

    One of the best ways to rid an engine of internal friction is with a set of roller rocker arms. Except for Chrysler shaft mount rockers, Proform's race-proven full needle bearing fulcrums and 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.

    JEGS Easy Kits are designed by JEGS professionals to ensure that you get all the correct parts you need.

    Does Proform 66931 fit your vehicle?

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    1985 CHEVROLET K10 PICKUP

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    • EngineType: V8
    • SubModel: BASE

    1990-1995 CHEVROLET K2500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1970 CHEVROLET BISCAYNE

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1989-1995 GMC C1500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SIERRA XC

    1979-1982 GMC G35/G3500 VAN

    • EngineType: ALL
    • SubModel: BASE

    1969-1971 CHEVROLET C20 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1971 GMC C1500 PICKUP

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 350
    • EngineType: V8

    1973 CHEVROLET EL CAMINO

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8

    1969-1970 GMC K15/K1500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1971 GMC JIMMY

    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 307
    • EngineType: V8

    1976 CHEVROLET NOVA

    • Liter: 5.7
    • SubModel: CONCOURS
    • CUI: 350
    • EngineType: V8

    1968-1969 GMC G15/G1500 VAN

    • EngineType: V8
    • SubModel: RALLY

    1971 GMC G35/G3500 VAN

    • Liter: 5.7
    • Aspiration: N
    • SubModel: VANDURA
    • Engine Vin: E
    • CUI: 350
    • EngineType: V8

    1988-1989 CHEVROLET K1500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: CHEYENNE

    1970 CHEVROLET BEL AIR

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1990 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: IROC-Z
    • EngineType: V8

    1990-1995 CHEVROLET C3500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1979 CHEVROLET MALIBU

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CLASSIC

    1970-1973 GMC P25/P2500 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1976-1977 GMC K25 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1983-1984 CHEVROLET C20 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CUSTOM

    1972-1973 CHEVROLET K30 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1983 CHEVROLET C10 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CUSTOM

    1994 GMC K1500

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SIERRA SL

    1972 GMC SPRINT

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8

    1974 CHEVROLET G10 VAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1983-1995 GMC G25/G2500 VAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: VANDURA

    1976 CHEVROLET MALIBU

    • CC: 5031
    • Liter: 5.0
    • SubModel: CLASSIC
    • EngineType: V8

    1988 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: BASE

    1990-1993 CHEVROLET C1500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1969-1970 GMC C1500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1973 CHEVROLET LAGUNA

    • Liter: 5.7
    • SubModel: ESTATE
    • CUI: 350
    • EngineType: V8

    1979-1986 GMC K3500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1970-1973 CHEVROLET MONTE CARLO

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8

    1972 CHEVROLET K10 PICKUP

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 350
    • EngineType: V8

    1969-1973 GMC C15/C1500 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1977 GMC K25 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1994-1995 GMC K3500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SIERRA SL

    1980-1982 CHEVROLET C30 PICKUP

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8

    1988-1989 CHEVROLET C2500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CHEYENNE

    1955 CHEVROLET CORVETTE

    • CC: 4343
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 265
    • EngineType: V8

    1976 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: LT
    • CUI: 350
    • EngineType: V8

    1971-1973 CHEVROLET BEL AIR

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • Liter: 5.7
    • SubModel: CONCOURS ESTATE
    • CUI: 350
    • EngineType: V8

    1966-1969 CHEVROLET CAPRICE

    • Liter: 5.4
    • EngineType: V8
    • SubModel: BASE

    1967-1968 GMC C35/C3500 PICKUP

    • Liter: 5.4
    • EngineType: V8
    • SubModel: BASE

    1973-1974 CHEVROLET G30 VAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1977 CHEVROLET NOVA

    • EngineType: V8
    • SubModel: CONCOURS

    1981-1982 CHEVROLET MONTE CARLO

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • EngineType: V8

    1975 GMC K25 SUBURBAN

    • EngineType: V8
    • SubModel: BASE

    1968-1971 CHEVROLET C30 PICKUP

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8

    1989-1991 CHEVROLET V1500 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SCOTTSDALE

    1972 GMC C1500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1977-1978 CHEVROLET C20 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CHEYENNE

    1985 CHEVROLET C20 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1979 CHEVROLET K30 PICKUP

    • EngineType: V8
    • SubModel: BASE

    1978 GMC CABALLERO

    • EngineType: V8
    • SubModel: BASE

    1985 CHEVROLET C10 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1968 CHEVROLET CHEVELLE

    • Liter: 5.4
    • EngineType: V8
    • SubModel: 300 DELUXE

    1976-1978 CHEVROLET C20 PICKUP

    • Liter: 6.6
    • EngineType: V8
    • SubModel: CHEYENNE

    1971 CHEVROLET G20 VAN

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1980 CHEVROLET G30 VAN

    • EngineType: ALL
    • SubModel: BASE

    1988-1993 GMC K3500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SIERRA

    1989-1995 GMC C2500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SIERRA XC

    1994-1995 GMC C3500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SIERRA SL

    1975-1978 CHEVROLET K10 SUBURBAN

    • EngineType: V8
    • SubModel: CUSTOM DELUXE

    1982-1986 GMC C1500 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1975-1978 GMC C25/C2500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1988 CHEVROLET V10 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SCOTTSDALE

    1972-1995 GMC G15/G1500 VAN

    • EngineType: V8
    • SubModel: VANDURA

    1969-1971 CHEVROLET IMPALA

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1980 CHEVROLET C10 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BIG TEN

    1973 CHEVROLET CAPRICE

    • Liter: 6.6
    • SubModel: CLASSIC
    • CUI: 400
    • EngineType: V8

    1972 GMC C35/C3500 PICKUP

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 350
    • EngineType: V8

    1973 CHEVROLET EL CAMINO

    • CC: 6555
    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8

    1982-1986 GMC K1500 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1955-1957 CHEVROLET TRUCK

    • CC: 4343
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 265
    • EngineType: V8

    1979 CHEVROLET C30 PICKUP

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE

    1970 CHEVROLET BROOKWOOD

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8

    1965 CHEVROLET CHEVELLE

    • Liter: 5.4
    • EngineType: V8
    • SubModel: SS

    1967 CHEVROLET C10 PICKUP

    • Liter: 4.6
    • EngineType: V8
    • SubModel: BASE

    1983-1984 CHEVROLET BLAZER K5

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CUSTOM

    1977-1978 CHEVROLET P20 VAN

    • EngineType: V8
    • SubModel: BASE

    1974 CHEVROLET CAMARO

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 350
    • EngineType: V8

    1995 GMC K1500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SIERRA SL

    1976-1978 CHEVROLET C30 PICKUP

    • Liter: 6.6
    • EngineType: V8
    • SubModel: CHEYENNE

    1974 CHEVROLET C20 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1976 GMC G35/G3500 VAN

    • Liter: 6.6
    • EngineType: V8
    • SubModel: MAGNAVAN

    1984 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: SS

    1964-1967 CHEVROLET EL CAMINO

    • Liter: 4.6
    • EngineType: V8
    • SubModel: BASE

    1973-1974 CHEVROLET CAPRICE

    • Liter: 6.6
    • SubModel: ESTATE
    • CUI: 400
    • EngineType: V8

    1986 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: BASE

    1987-1991 GMC V1500 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1974 CHEVROLET C20 PICKUP

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 350
    • EngineType: V8

    1962-1969 CHEVROLET BISCAYNE

    • Liter: 5.4
    • EngineType: V8
    • SubModel: BASE

    1990-1993 CHEVROLET K1500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1977-1978 GMC G35/G3500 VAN

    • EngineType: V8
    • SubModel: MAGNAVAN

    1976 CHEVROLET NOVA

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1969 CHEVROLET G20 VAN

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: SPORTVAN
    • Engine Vin: U
    • CUI: 307
    • EngineType: V8

    1975-1977 CHEVROLET C10 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: CUSTOM DELUXE
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