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Hedman Hedders

Hedman Header Gaskets 27550 "Header" Chevrolet Big Block 396-454 Square Port

SKU: HED27550

Header and Exhaust Manifold Gaskets

Hedman Header Gaskets 27550 "Header" Chevrolet Big Block 396-454 Square Port

Hedman Hedders

Hedman Header Gaskets 27550 "Header" Chevrolet Big Block 396-454 Square Port

SKU: HED27550

Header and Exhaust Manifold Gaskets
A$64.08
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Hedman header gaskets are made of a special gasket material developed for Hedman. Accept no substitute. Hedman gaskets are available for all header applications. They were made to be exact matches to their headers, ensuring a proper fit and seal. Check with your header installation instructions to get the proper number for your headers.

Part Type

Header Gaskets

Data: v4.2 - Upd: 2026-10-23 04:04:48

Specifications

Product Attributes - Brand
Hedman Hedders
Product Attributes - Manufacturer's Part Number
27550
Product Attributes - Part Type
Header and Exhaust Manifold Gaskets
Product Attributes - Product Line
Hedman Header Gaskets
Product Attributes - UPC
732611275507
Product Attributes - Port Style
Square port
Product Attributes - Gasket Material
Compressed fiber laminate
Product Attributes - Quantity
Sold as a pair.
Product Attributes - Notes
For use with 1.750 in. and 2.000 in. header tubes.

Reference Information

Brand Name/s Hedman Hedders
StreetFX SKU hed27550
SFX Item ID 5070774
Supplier Item Code 5070774
Manufacturer SKU 27550
Manufacturer UPC 732611275507

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1966
    Ending Year1969
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.0L/427
    Application Notes1.750 in. diameter header tubes.
  • MakeCHEVROLET
    Beginning Year1966
    Ending Year1969
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.0L/427
    Application Notes2.000 in. diameter tight tube engine swap header tubes for Chevy 1955-57 passenger cars.
  • MakeCHEVROLET
    Beginning Year1966
    Ending Year1970
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size6.5L/396
    Application Notes1.750 in. diameter header tubes.
  • MakeCHEVROLET
    Beginning Year1966
    Ending Year1970
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size6.5L/396
    Application Notes2.000 in. diameter tight tube engine swap header tubes for Chevy 1955-57 passenger cars.
  • MakeCHEVROLET
    Beginning Year1970
    Ending Year1972
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size6.6L/402
    Application Notes1.750 in. diameter header tubes.
  • MakeCHEVROLET
    Beginning Year1970
    Ending Year1972
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size6.6L/402
    Application Notes2.000 in. diameter tight tube engine swap header tubes for Chevy 1955-57 passenger cars.
  • MakeCHEVROLET
    Beginning Year1970
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Application Notes1.750 in. diameter header tubes.
  • MakeCHEVROLET
    Beginning Year1970
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Application Notes2.000 in. diameter tight tube engine swap header tubes for Chevy 1955-57 passenger cars.
  • MakeCHEVROLET
    Beginning Year1991
    Ending Year1995
    Engine TypeV8
    Engine FamilyChevy big block Gen V
    Engine Size7.4L/454
    Application Notes1.750 in. diameter header tubes.
  • MakeCHEVROLET
    Beginning Year1991
    Ending Year1995
    Engine TypeV8
    Engine FamilyChevy big block Gen V
    Engine Size7.4L/454
    Application Notes2.000 in. diameter tight tube engine swap header tubes for Chevy 1955-57 passenger cars.
  • MakeCHEVROLET
    Beginning Year1996
    Ending Year2000
    Engine TypeV8
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Application Notes1.750 in. diameter header tubes.
  • MakeCHEVROLET
    Beginning Year1996
    Ending Year2000
    Engine TypeV8
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Application Notes2.000 in. diameter tight tube engine swap header tubes for Chevy 1955-57 passenger cars.
  • MakeCHEVROLET
    Beginning Year2001
    Ending Year2005
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Application Notes1.750 in. diameter header tubes.
  • MakeCHEVROLET
    ModelC2500
    Beginning Year1996
    Ending Year2000
    Engine TypeV8
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Application Notes2WD models using 1.750 in. diameter header tubes.
  • MakeCHEVROLET
    ModelC30
    Beginning Year1982
    Ending Year1986
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Application Notes2WD models using 1.750 in. diameter header tubes.
  • MakeCHEVROLET
    ModelC3500
    Beginning Year1988
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Application Notes2WD models using 1.750 in. diameter header tubes.
  • MakeCHEVROLET
    ModelC3500
    Beginning Year1991
    Ending Year1995
    Engine TypeV8
    Engine FamilyChevy big block Gen V
    Engine Size7.4L/454
    Application Notes2WD models using 1.750 in. diameter header tubes.
  • MakeCHEVROLET
    ModelC3500
    Beginning Year1996
    Ending Year2000
    Engine TypeV8
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Application Notes2WD models using 1.750 in. diameter header tubes.
  • MakeCHEVROLET
    ModelEXPRESS 3500
    Beginning Year1996
    Ending Year2000
    Engine TypeV8
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Application Notes1.750 in. diameter header tubes.
  • MakeCHEVROLET
    ModelEXPRESS 3500
    Beginning Year2001
    Ending Year2002
    Engine TypeV8
    Engine FamilyChevy big block Gen VII
    Engine Size8.1L/496
    Application Notes1.750 in. diameter header tubes.
  • MakeCHEVROLET
    ModelG10 VAN
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Application Notes1.750 in. diameter header tubes.
  • MakeCHEVROLET
    ModelG20
    Beginning Year1976
    Ending Year1976
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Application Notes1.750 in. diameter header tubes.
  • MakeCHEVROLET
    ModelG20 VAN
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Application Notes1.750 in. diameter header tubes.
  • MakeCHEVROLET
    ModelG30
    Beginning Year1975
    Ending Year1976
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Application Notes1.750 in. diameter header tubes.
  • MakeCHEVROLET
    ModelG30
    Beginning Year1988
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Application Notes1.750 in. diameter header tubes.

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