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Proform 66905

Stamped Steel Long Slot Rocker Arms for Small Block Chevy with 1.5 Ratio & 3/8" Stud

Proform 66905
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Product images may differ from actual product appearance.

778-66905

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Proform 66905 Stamped Steel Long Slot Rocker Arms for Small Block Chevy with 1.5 Ratio & 3/8" Stud $68.99
Stamped Steel Long Slot Rocker Arms
  • Small Block Chevy
  • 1.5 Ratio, 3/8'' Stud
  • 16/pkg

  • Proform 66905 Details

    Stamped Steel Long Slot Rockers

  • Proven OEM Quality
  • Extra Long Slot
  • Eliminates Rocker To Stud Interference

  • Specifications:

    Engine Make/Size
    Chevy Small Block (262-400)
    Stud Size
    0.3750
    Ratio
    1.5
    Position
    N/A
    Includes Shims
    NO
    Nut Style
    Crimp Nut
    Arm Finish
    Natural
    Arm Material
    Steel
    Quantity
    Sold as a set of 16
    Rocker Arm Body Style
    Standard
    Rocker Arm Mounting Style
    Stud
    Rocker Arm Nut Style
    Self-locking
    Rocker Arm Ratio
    1.5
    Rocker Arm Style
    Non-roller
    Self-Aligning
    No
    Shims Included
    No
    Slot Style
    Extra-long
    Manufacturer's Part Number:
    66905

    Made to strict OE standards the Proform Stamped Steel Long Slot Rocker Arms are ideal when your application doesn't require roller-tip rocker arms. They feature an extra-long slot that eliminates rocker-to-stud interference when using a high-lift camshaft.

    Does Proform 66905 fit your vehicle?

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    Aspiration

    1980 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1973-1974 CHEVROLET IMPALA

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973 CHEVROLET P20 VAN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1970 CHEVROLET CHEVELLE

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: ND
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1967 GMC P25/P2500 VAN

    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1987-1991 GMC V2500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 CHEVROLET C10 SUBURBAN

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1975-1978 CHEVROLET K20 SUBURBAN

    • Liter: 5.7
    • SubModel: CUSTOM DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970-1989 GMC P25/P2500 VAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1983-1984 CHEVROLET C20 SUBURBAN

    • CC: 5031
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979 GMC G15/G1500 VAN

    • Liter: 6.6
    • SubModel: RALLY
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972 CHEVROLET BROOKWOOD

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985-1995 GMC G25/G2500 VAN

    • Liter: 5.7
    • SubModel: VANDURA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978 CHEVROLET P10 VAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 CHEVROLET C30 PICKUP

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

    1969-1970 CHEVROLET C20 SUBURBAN

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • SubModel: GREENBRIER
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 GMC C35/C3500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1968 CHEVROLET CHEVELLE

    • Liter: 5.4
    • SubModel: NOMAD
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1984 CHEVROLET CAPRICE

    • CC: 5031
    • Liter: 5.0
    • SubModel: CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1968 GMC C15/C1500 SUBURBAN

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1972 CHEVROLET BLAZER

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 GMC JIMMY

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1994 GMC G15/G1500 VAN

    • EngineType: ALL
    • SubModel: BASE

    1972 GMC JIMMY

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1980 GMC C2500 SUBURBAN

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1992-1994 CHEVROLET C1500 SUBURBAN

    • EngineType: ALL
    • SubModel: BASE

    1988-1989 CHEVROLET K1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: CHEYENNE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1973-1974 CHEVROLET K20 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 CHEVROLET EL CAMINO

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: B
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1973 GMC G25/G2500 VAN

    • Liter: 5.0
    • SubModel: RALLY
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1971 CHEVROLET KINGSWOOD

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1995 GMC G25/G2500 VAN

    • Liter: 5.0
    • SubModel: RALLY
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1969 CHEVROLET CHEVELLE

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: MALIBU
    • Engine Vin: DC
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1976 CHEVROLET MALIBU

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1976-1977 GMC SPRINT

    • Liter: 5.0
    • SubModel: CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1981-1983 CHEVROLET IMPALA

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1973-1974 GMC K35/K3500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1984-1985 CHEVROLET G10 VAN

    • CC: 5031
    • Liter: 5.0
    • SubModel: BEAUVILLE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1973 CHEVROLET CAPRICE

    • CC: 5737
    • Liter: 5.7
    • SubModel: ESTATE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1973 GMC SPRINT

    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1977 GMC C15 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 CHEVROLET K20 SUBURBAN

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1967 CHEVROLET C10 PICKUP

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1970 CHEVROLET G30 VAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 CHEVROLET R10 SUBURBAN

    • CC: 5031
    • Liter: 5.0
    • SubModel: CUSTOM DELUXE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1969 CHEVROLET G20 VAN

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1955-1957 CHEVROLET ONE-FIFTY SERIES

    • CC: 4343
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 265
    • EngineType: V8 ( 4.3 L / 265 )

    1965 CHEVROLET CHEVELLE

    • CC: 4638
    • Liter: 4.6
    • SubModel: SS
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1975-1978 GMC C25 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1983-1984 CHEVROLET C10 PICKUP

    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988 CHEVROLET R20 SUBURBAN

    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 CHEVROLET CHEVELLE

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: 300 DELUXE
    • Engine Vin: DC
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1980 CHEVROLET G10 VAN

    • Liter: 5.0
    • SubModel: SPORTVAN
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1970 CHEVROLET C10 PICKUP

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1955-1957 CHEVROLET TWO-TEN SERIES

    • CC: 4343
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 265
    • EngineType: V8 ( 4.3 L / 265 )

    1971 CHEVROLET K20 PICKUP

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

    1980 CHEVROLET K20 SUBURBAN

    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977 CHEVROLET CAPRICE

    • CC: 5031
    • Liter: 5.0
    • SubModel: CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1982-1985 GMC K1500 SUBURBAN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1977-1978 CHEVROLET K5 BLAZER

    • Liter: 6.6
    • SubModel: CHEYENNE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1969 CHEVROLET BLAZER

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 GMC G25/G2500 VAN

    • Liter: 5.0
    • SubModel: VANDURA
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1976 CHEVROLET NOVA

    • CC: 5031
    • Liter: 5.0
    • SubModel: CONCOURS
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1989 CHEVROLET G10 VAN

    • Liter: 5.7
    • SubModel: SPORTVAN
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 CHEVROLET CAMARO

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967 CHEVROLET K10 PICKUP

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1967 GMC C25/C2500 PICKUP

    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1969 GMC C1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1972 CHEVROLET KINGSWOOD

    • CC: 5737
    • Liter: 5.7
    • SubModel: ESTATE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1980 GMC G25/G2500 VAN

    • Liter: 6.6
    • SubModel: RALLY
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971 CHEVROLET C30 PICKUP

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1975-1976 CHEVROLET CAPRICE

    • Liter: 5.7
    • SubModel: CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1978 CHEVROLET G30 VAN

    • Liter: 5.7
    • SubModel: BEAUVILLE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 CHEVROLET K10 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1972 CHEVROLET G20 VAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988-1989 CHEVROLET C1500 PICKUP

    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968-1969 GMC G25/G2500 VAN

    • Liter: 5.0
    • SubModel: RALLY
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1968 CHEVROLET G20 VAN

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1977-1978 CHEVROLET K10 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: CHEYENNE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1972-1973 CHEVROLET NOVA

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1994-1995 CHEVROLET C2500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979-1982 CHEVROLET K30 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976-1979 GMC K1500 PICKUP

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1985 CHEVROLET BLAZER K5

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1974-1977 GMC SPRINT

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1961-1962 CHEVROLET P30 SERIES VAN

    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1982 CHEVROLET CORVETTE

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978-1979 CHEVROLET C10 PICKUP

    • Liter: 5.7
    • SubModel: BIG TEN
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 GMC SPRINT

    • CC: 6556
    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1976 CHEVROLET IMPALA

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1977 GMC C1500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1978 CHEVROLET K20 PICKUP

    • Liter: 6.6
    • SubModel: CHEYENNE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973 CHEVROLET P10 VAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970-1973 CHEVROLET G10 VAN

    • Liter: 5.7
    • SubModel: SPORTVAN
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982 CHEVROLET C10 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988-1993 GMC C1500 PICKUP

    • Liter: 5.0
    • SubModel: SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1968-1969 GMC G25/G2500 VAN

    • Liter: 5.0
    • SubModel: VANDURA
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1971-1973 GMC SPRINT

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )
    66905 - Proform Stamped Steel Long Slot Rocker Arms is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from Great quality, well made. Excellent rockers for moderate street build engine in process. Long slots for .450 lift cam I am using, clear well. Looking at them close they are made correctly.
    Date published: 2015-02-15
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