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Proform 66940WO

High Performance HEI Distributor for 1955-1982 Small Block & Big Block Chevy with No Cap

Proform 66940WO

778-66940WO

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Proform 66940WO High Performance HEI Distributor for 1955-1982 Small Block & Big Block Chevy with No Cap $78.99
High Performance HEI Distributor
  • 1955-1982 Small Block & Big Block Chevy
  • No Cap

  • Proform 66940WO Details

    Chevy
    HEI Distributor (No Coil)

  • High Performance Control Module
  • Hardened Gear
  • Capacitor That Prevents Radio Static
  • High-Dielectric Cap w/Brass Terminals
  • Premium Rotor

  • Specifications:

    Engine Make/Size
    Chevy Big Block (396-454)
    Engine Make/Size
    Chevy Small Block (262-400)
    Distributor Type
    HEI/Breakerless
    Advance Type
    Vacuum and mechanical
    Cap Style
    Male/HEI
    Computer-Controlled Compatible
    No
    Distributor Gear Rotation
    Standard
    Gear Material
    Iron
    Housing Finish
    Natural
    Ignition Box Required
    No
    Marine Use
    No
    Mechanical Tach Drive
    No
    Quantity
    Sold individually
    Slip Collar
    No
    Trigger Style
    Magnetic
    Housing Material
    Cast aluminum
    Manufacturer's Part Number:
    66940WO


    100% New Components!

    HEI Distributors
    Available for high performance, street/strip, or race applications. These HEI distributors offer true spark alignment for instantaneous voltage response, and have a high-performance advance curve. Distributors include high-output coil, cap with brass terminals, and low-saturation ignition module for maximum spark intensity.

    Replacement HEI Parts
    Keep your Proform HEI Distributor running at its peak without the confusion of off-brand components. Proform replacement parts are made of new materials specifically for Proform HEI Distributors.

    Does Proform 66940WO fit your vehicle?

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    Aspiration

    1978 GMC C1500 PICKUP

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

    1971 CHEVROLET CHEVELLE

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

    1981 GMC K1500 SUBURBAN

    • EngineType: ALL
    • SubModel: BASE

    1970-1971 CHEVROLET KINGSWOOD

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

    1972 CHEVROLET CHEVELLE

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

    1971 CHEVROLET CHEVELLE

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

    1971 GMC G35/G3500 VAN

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

    1978-1982 GMC CABALLERO

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

    1974 CHEVROLET P20 VAN

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

    1978-1979 CHEVROLET NOVA

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

    1975-1978 CHEVROLET G20 VAN

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

    1973-1974 GMC C15/C1500 SUBURBAN

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

    1968-1969 CHEVROLET C30 PICKUP

    • CC: 6489
    • Liter: 6.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1972-1973 GMC SPRINT

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

    1967 GMC K1500 PICKUP

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

    1982 GMC C1500 SUBURBAN

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

    1977-1980 PONTIAC FIREBIRD

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

    1981 CHEVROLET CORVETTE

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

    1973 GMC K25/K2500 PICKUP

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

    1961-1966 CHEVROLET SUBURBAN

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

    1970 CHEVROLET CHEVELLE

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

    1980 CHEVROLET P30 VAN

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

    1970 CHEVROLET KINGSWOOD

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

    1971 GMC K1500 PICKUP

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

    1970 CHEVROLET EL CAMINO

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1969 CHEVROLET EL CAMINO

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

    1978 GMC VAN P35/P3500

    • EngineType: ALL
    • SubModel: ALL

    1972-1973 CHEVROLET CAMARO

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

    1970-1972 GMC G25/G2500 VAN

    • EngineType: ALL
    • SubModel: BASE

    1972 CHEVROLET CHEVELLE

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

    1975-1976 CHEVROLET G30 VAN

    • Liter: 7.4
    • SubModel: BEAUVILLE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1961-1962 CHEVROLET P20 SERIES VAN

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

    1978-1979 CHEVROLET C10 PICKUP

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

    1977-1982 GMC G15/G1500 VAN

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

    1977 BUICK SKYLARK

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

    1966-1969 CHEVROLET BISCAYNE

    • CC: 6998
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1974 CHEVROLET K20 SUBURBAN

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

    1976-1979 CHEVROLET C10 SUBURBAN

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

    1972 CHEVROLET CAMARO

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

    1974 CHEVROLET P30 VAN

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976-1978 CHEVROLET C10 SUBURBAN

    • Liter: 7.4
    • SubModel: CUSTOM DELUXE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1978-1979 PONTIAC PHOENIX

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

    1974 GMC SPRINT

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1974 CHEVROLET C10 SUBURBAN

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

    1970-1971 CHEVROLET BEL AIR

    • CC: 7441
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975 CHEVROLET LAGUNA

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

    1970-1973 GMC C35/C3500 PICKUP

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

    1979 CHEVROLET MALIBU

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

    1968 GMC K25/K2500 SUBURBAN

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

    1982 GMC K1500 SUBURBAN

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

    1966 CHEVROLET CHEVELLE

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1967 CHEVROLET K20 PICKUP

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

    1977 OLDSMOBILE DELTA 88

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

    1971 GMC G35/G3500 VAN

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

    1973 GMC JIMMY

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

    1980 CHEVROLET K30 PICKUP

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

    1975-1978 CHEVROLET G20 VAN

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

    1979-1980 GMC K1500 SUBURBAN

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

    1977-1981 CHEVROLET CAMARO

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

    1972 CHEVROLET KINGSWOOD

    • CC: 7441
    • Liter: 7.4
    • Aspiration: N
    • SubModel: ESTATE
    • Engine Vin: V
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1980 GMC C1500 PICKUP

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

    1967 GMC P35/P3500 VAN

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

    1979-1980 PONTIAC GRAND PRIX

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

    1976 GMC K1500 PICKUP

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977-1979 OLDSMOBILE STARFIRE

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

    1978 OLDSMOBILE CUTLASS

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

    1979 CHEVROLET C30 PICKUP

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

    1979-1981 CHEVROLET MALIBU

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

    1980 GMC C2500 SUBURBAN

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

    1981 CHEVROLET C10 PICKUP

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

    1978-1979 GMC CABALLERO

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

    1969-1970 CHEVROLET K20 PICKUP

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

    1974 CHEVROLET P30 VAN

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

    1977 BUICK CENTURY

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

    1978-1980 PONTIAC GRAND LEMANS

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

    1976 CHEVROLET NOVA

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

    1973 CHEVROLET CORVETTE

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

    1969 CHEVROLET CHEVELLE

    • CC: 6489
    • Liter: 6.5
    • SubModel: GREENBRIER
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1965 CHEVROLET CHEVELLE

    • CC: 5358
    • Liter: 5.3
    • SubModel: SS
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1974 GMC K1500 PICKUP

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

    1976 CHEVROLET MALIBU

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

    1980 CHEVROLET C10 PICKUP

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

    1975-1978 GMC C15 SUBURBAN

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1971 GMC K25/K2500 SUBURBAN

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

    1958-1967 CHEVROLET BISCAYNE

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

    1975 GMC G35/G3500 VAN

    • EngineType: ALL
    • SubModel: RALLY

    1973-1980 CHEVROLET G30 VAN

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

    1973 CHEVROLET C20 PICKUP

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

    1971 GMC C35/C3500 PICKUP

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

    1968 CHEVROLET C20 PICKUP

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

    1972 CHEVROLET TOWNSMAN

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

    1975 CHEVROLET IMPALA

    • CC: 5735
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1971 CHEVROLET CHEVELLE

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

    1977-1978 CHEVROLET MALIBU

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

    1971 CHEVROLET CHEVELLE

    • CC: 7441
    • Liter: 7.4
    • SubModel: NOMAD
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981 GMC C1500 PICKUP

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

    1973-1974 CHEVROLET C20 SUBURBAN

    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Z
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1981-1982 CHEVROLET CAMARO

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

    1976 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: BASE

    1972-1973 GMC G15/G1500 VAN

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