0
0
Account Login
1-800-345-4545
Gift Cards
Track Order
Help

Proform High Performance HEI Distributor for 1955-1982 Small Block & Big Block Chevy with Tan Cap

778-66940


Product Q&A
View Now
Click image to zoom
Proform 66940
$82.99
High Performance HEI Distributor
  • 1955-1982 Small Block & Big Block Chevy
  • Tan Cap
  • Ships directly from the manufacturer
    Save $10 off $299+, $20 off $599+, $30 off $799+, $100 off $1,599 Orders. Promo Code: BURNOUT exclusions apply
    QTY

    Items You May Also Consider

    Does Proform 66940 fit your vehicle?

    Narrow Results
    Filter By Year
    Filter By Make
    Filter By Model
    Filter By SubModel
    Filter By Liter

    1960  CHEVROLET TRUCK

    • Liter: 4.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 283

    1964  CHEVROLET CHEVELLE

    • Liter: 5.3
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 327

    1974  GMC SPRINT

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 400

    1975  CHEVROLET IMPALA

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: M
    • CUI: 400

    1973  CHEVROLET K30 PICKUP

    • Liter: 7.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: Z
    • CUI: 454

    1971  CHEVROLET CHEVELLE

    • Liter: 7.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 454

    1968  CHEVROLET C10 SUBURBAN

    • Liter: 6.5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 396

    1970  CHEVROLET MONTE CARLO

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 400

    1975  CHEVROLET K10 SUBURBAN

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM DELUXE
    • Engine Vin: M
    • CUI: 400

    1964  CHEVROLET EL CAMINO

    • Liter: 4.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 283

    1968  CHEVROLET EL CAMINO

    • Liter: 6.5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM
    • Engine Vin: -
    • CUI: 396

    1968  CHEVROLET C20 PICKUP

    • Liter: 6.5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 396

    1970  CHEVROLET P30 VAN

    • Liter: 7.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 454

    1969  GMC K15/K1500 SUBURBAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 350

    1975  GMC C25 SUBURBAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 350

    1977  CHEVROLET MALIBU

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 305

    1965  CHEVROLET CHEVY II

    • Liter: 5.3
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: NOVA
    • Engine Vin: -
    • CUI: 327

    1968  CHEVROLET G10 VAN

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SPORTVAN
    • Engine Vin: E
    • CUI: 307

    1971  GMC G15/G1500 VAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: B
    • CUI: 350

    1970  GMC C25/C2500 PICKUP

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: B
    • CUI: 307

    1970  CHEVROLET BEL AIR

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 400

    1974  CHEVROLET CORVETTE

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: J
    • CUI: 350

    1970  CHEVROLET BEL AIR

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 400

    1970  GMC K15/K1500 SUBURBAN

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: B
    • CUI: 307

    1975  GMC JIMMY

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: M
    • CUI: 400

    1977  CHEVROLET NOVA

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CONCOURS
    • Engine Vin: U
    • CUI: 305

    1972  GMC K35/K3500 PICKUP

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 350

    1971  CHEVROLET CHEVELLE

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CONCOURS
    • Engine Vin: -
    • CUI: 307

    1966  CHEVROLET BISCAYNE

    • Liter: 7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 427

    1971  GMC G35/G3500 VAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: VANDURA
    • Engine Vin: B
    • CUI: 350

    1970  GMC C25/C2500 SUBURBAN

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 402

    1971  CHEVROLET BEL AIR

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350

    1973  CHEVROLET K30 PICKUP

    • Liter: 7.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 454

    1970  CHEVROLET BEL AIR

    • Liter: 7.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 454

    1970  GMC K15/K1500 SUBURBAN

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 307

    1975  GMC SPRINT

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: M
    • CUI: 400

    1974  CHEVROLET CAPRICE

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CLASSIC
    • Engine Vin: L
    • CUI: 350

    1972  CHEVROLET CHEVELLE

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: MALIBU
    • Engine Vin: J
    • CUI: 350

    1977  GMC K15 SUBURBAN

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 400

    1970  CHEVROLET C30 PICKUP

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 307

    1972  GMC SPRINT

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 350

    1971  GMC C25/C2500 SUBURBAN

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 402

    1972  CHEVROLET BROOKWOOD

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 402

    1971  CHEVROLET G20 VAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SPORTVAN
    • Engine Vin: A
    • CUI: 350

    1967  CHEVROLET CHEVELLE

    • Liter: 6.5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 396

    1974  CHEVROLET MALIBU

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CLASSIC
    • Engine Vin: K
    • CUI: 350

    1979  PONTIAC FIREBIRD

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: FORMULA
    • Engine Vin: G
    • CUI: 305

    1972  CHEVROLET BEL AIR

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 400

    1976  CHEVROLET LAGUNA

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: S3
    • Engine Vin: Q
    • CUI: 305

    1969  CHEVROLET NOVA

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 307

    1971  CHEVROLET C10 PICKUP

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 307

    1969  GMC C25/C2500 SUBURBAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 350

    1968  CHEVROLET C10 PICKUP

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 307

    1973  CHEVROLET LAGUNA

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: ESTATE
    • Engine Vin: H
    • CUI: 350

    1970  CHEVROLET CHEVELLE

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350

    1972  CHEVROLET TOWNSMAN

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 400

    1977  GMC K25 SUBURBAN

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 305

    1971  GMC C15/C1500 SUBURBAN

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 307

    1968  GMC K35/K3500 PICKUP

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 307

    1970  CHEVROLET K20 SUBURBAN

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 307

    1974  CHEVROLET MALIBU

    • Liter: 7.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CLASSIC
    • Engine Vin: Y
    • CUI: 454

    1972  CHEVROLET C20 SUBURBAN

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 402

    1973  GMC K15/K1500 SUBURBAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 350

    1970  CHEVROLET C10 SUBURBAN

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: B
    • CUI: 307

    1972  CHEVROLET BROOKWOOD

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 400

    1956  CHEVROLET CORVETTE

    • Liter: 4.3
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 265

    1979  PONTIAC GRAND LEMANS

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 305

    1975  GMC SPRINT

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CLASSIC
    • Engine Vin: U
    • CUI: 402

    1977  GMC K25 SUBURBAN

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 400

    1970  CHEVROLET K20 SUBURBAN

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 307

    1958  CHEVROLET BISCAYNE

    • Liter: 4.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 283

    1970  CHEVROLET CAPRICE

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 400

    1972  GMC SPRINT

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 350

    1970  CHEVROLET EL CAMINO

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM
    • Engine Vin: A
    • CUI: 307

    1955  CHEVROLET ONE-FIFTY SERIES

    • Liter: 4.3
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 265

    1971  GMC C35/C3500 PICKUP

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 402

    1972  CHEVROLET C10 PICKUP

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: F
    • CUI: 307

    1974  CHEVROLET C10 SUBURBAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: V
    • CUI: 350

    1974  GMC C15/C1500 SUBURBAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: V
    • CUI: 350

    1969  CHEVROLET BLAZER

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 307

    1974  CHEVROLET MALIBU

    • Liter: 7.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CLASSIC
    • Engine Vin: Y
    • CUI: 454

    1968  CHEVROLET CHEVY II

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: NOVA
    • Engine Vin: ME
    • CUI: 307

    1980  CHEVROLET CAMARO

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 305

    1974  CHEVROLET G30 VAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: V
    • CUI: 350

    1976  CHEVROLET K20 SUBURBAN

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM DELUXE
    • Engine Vin: U
    • CUI: 400

    1970  CHEVROLET C10 PICKUP

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 307

    1968  GMC K25/K2500 PICKUP

    • Liter: 6.5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 396

    1969  CHEVROLET BISCAYNE

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350

    1973  GMC P35/P3500 VAN

    • Liter: 7.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: Z
    • CUI: 454

    1972  GMC K25/K2500 SUBURBAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: J
    • CUI: 350

    1956  CHEVROLET BEL AIR

    • Liter: 4.3
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 265

    1971  GMC G35/G3500 VAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: RALLY
    • Engine Vin: A
    • CUI: 350

    1970  CHEVROLET CHEVELLE

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350

    1972  CHEVROLET CORVETTE

    • Liter: 7.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 454

    1978  BUICK SKYLARK

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM
    • Engine Vin: U
    • CUI: 305

    1969  CHEVROLET TOWNSMAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350

    1978  OLDSMOBILE CUTLASS SALON

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: 442
    • Engine Vin: H
    • CUI: 305

    1971  CHEVROLET C10 PICKUP

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 307

    1969  GMC K15/K1500 SUBURBAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 350

    1979  CHEVROLET MALIBU

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CLASSIC
    • Engine Vin: -
    • CUI: 350
    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.