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Mr Gasket Aluminum Header Gasket Small Block Chevy

720-7400G


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Mr Gasket 7400G
$27.77
2 left in stock
Aluminum Header Gasket
  • Small Block Chevy
  • Small Round Port
  • 1.50"
  • Ships
    QTY

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    1970  GMC K15/K1500 SUBURBAN

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

    1970  GMC K35/K3500 PICKUP

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

    1971  CHEVROLET C10 SUBURBAN

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

    1971  CHEVROLET C20 SUBURBAN

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

    1978  OLDSMOBILE CUTLASS SUPREME

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

    1981  CHEVROLET CAMARO

    • Liter: 4.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SPORT
    • Engine Vin: J
    • CUI: 267

    1971  CHEVROLET CAMARO

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

    1978  PONTIAC GRAND LEMANS

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

    1991  CADILLAC BROUGHAM

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

    1979  GMC C1500

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

    1981  CHEVROLET G20

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: NOMAD
    • Engine Vin: F
    • CUI: 305

    1971  CHEVROLET CAMARO

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

    1975  GMC C15

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

    1972  CHEVROLET CORVETTE

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

    1976  PONTIAC GRAND PRIX

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

    1980  GMC C1500

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HEAVY HALF
    • Engine Vin: X
    • CUI: 400

    1972  CHEVROLET EL CAMINO

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

    1972  CHEVROLET CHEVELLE

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

    1972  GMC JIMMY

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

    1980  GMC C1500

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

    1975  GMC C25 SUBURBAN

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

    1955  GMC M340

    • Liter: 4.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 288

    1973  GMC JIMMY

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

    1971  CHEVROLET C20 PICKUP

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

    1979  CHEVROLET MALIBU

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

    1980  GMC C2500 SUBURBAN

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: M
    • CUI: 350

    1967  CHEVROLET CHEVELLE

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

    1968  GMC G15/G1500 VAN

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

    1972  CHEVROLET G10 VAN

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

    1987  GMC G3500

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

    1969  CHEVROLET IMPALA

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

    1972  PONTIAC GRANDVILLE

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

    1972  GMC K25/K2500 PICKUP

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

    1975  GMC K25

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

    1989  CHEVROLET R3500

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

    1978  GMC C25 SUBURBAN

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

    1987  GMC V1500 SUBURBAN

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

    1972  CHEVROLET C10 SUBURBAN

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

    1976  CHEVROLET MALIBU

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

    1970  CHEVROLET IMPALA

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

    1971  CHEVROLET CAMARO

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: RS
    • Engine Vin: CA
    • CUI: 307

    1979  CHEVROLET MONZA

    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: 2+2
    • Engine Vin: G
    • CUI: 305

    1972  GMC K15/K1500 SUBURBAN

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

    1967  CHEVROLET K20 PANEL

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

    1969  CHEVROLET BEL AIR

    • Liter: 5.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: FB
    • CUI: 327

    1976  GMC C25

    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: U
    • CUI: 400

    1956  CHEVROLET TWO-TEN SERIES

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

    1975  GMC G35

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

    1974  CHEVROLET MALIBU

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

    1965  CHEVROLET CHEVY II

    • Liter: 5.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: NOVA SS
    • Engine Vin: -
    • CUI: 327

    1968  GMC K15/K1500 SUBURBAN

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

    1972  CHEVROLET G20 VAN

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

    1968  CHECKER MARATHON

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

    1978  OLDSMOBILE CUTLASS SUPREME

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

    1978  CHEVROLET K5 BLAZER

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

    1987  GMC JIMMY

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

    1969  CHEVROLET K10 PICKUP

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

    1977  CHEVROLET K20 SUBURBAN

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

    1973  CHEVROLET BLAZER

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

    1977  GMC G35

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

    1972  PONTIAC VENTURA

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

    1979  GMC C1500

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

    1987  GMC V2500

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

    1973  CHEVROLET MONTE CARLO

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

    1972  CHEVROLET EL CAMINO

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

    1975  OLDSMOBILE CUSTOM CRUISER

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

    1988  CHEVROLET CAMARO

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

    1977  CHEVROLET CAMARO

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

    1977  OLDSMOBILE STARFIRE

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

    1980  OLDSMOBILE CUTLASS CRUISER

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

    1972  CHEVROLET KINGSWOOD

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

    1987  GMC V1500

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

    1972  CHEVROLET CAMARO

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

    1983  CHEVROLET G10

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

    1969  GMC K25/K2500 SUBURBAN

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

    1988  CHEVROLET K1500

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

    1955  GMC F370

    • Liter: 5.2
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 316

    1977  OLDSMOBILE OMEGA

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

    1976  CHEVROLET MONTE CARLO

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

    1969  CHEVROLET K20 PICKUP

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

    1981  PONTIAC PARISIENNE

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

    1965  CHEVROLET CHEVELLE

    • Liter: 5.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: DELUXE
    • Engine Vin: -
    • CUI: 327

    1972  GMC C25/C2500 SUBURBAN

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

    1970  GMC C15/C1500 SUBURBAN

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

    1973  GMC K15/K1500 SUBURBAN

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

    1970  CHEVROLET EL CAMINO

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

    1969  CHEVROLET C10 SUBURBAN

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

    1979  GMC C2500 SUBURBAN

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

    1975  CHEVROLET K5 BLAZER

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

    1971  CHEVROLET CAPRICE

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

    1978  PONTIAC GRAND PRIX

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

    1975  GMC C15 SUBURBAN

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

    1976  GMC C25

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

    1973  CHEVROLET MALIBU

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

    1975  GMC JIMMY

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

    1979  GMC K1500 SUBURBAN

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

    1971  GMC G25/G2500 VAN

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

    1991  BUICK COMMERCIAL CHASSIS

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

    1974  CHEVROLET MONTE CARLO

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

    1972  CHEVROLET CORVETTE

    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    7400G is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from Seals great My cheap headers quit leaking, on small block chevy. Only gasket I will buy.
    Date published: 2016-10-02
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    will these gaskets seal a round port header mating to square port head

    Asked by: Razor1957
    This will depend on the size of the ports in the head and the exhaust ports. This can work depending on that size.
    Answered by: Rusty B
    Date published: 2018-02-16
    • y_2020, m_2, d_26, h_12CST
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    Items You Need

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    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.