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Header Flange for Big Block Chevy [Square Port]
InfoVehicle Info Needed
JEGSPART NUMBER: 555-31806

Header Flange for Big Block Chevy [Square Port]

$3799
More than 10 available
ShippingShips on Sep 08, 2026
Lowest PriceLowest Price Guarantee

Chevy Big Block Header Flanges
    Header Flange
  • Big Block Chevy
  • Square Port
  • 2.400 in. W x 2.070 in. H
  • 3/8 in. Thick Steel Flange
  • Sold Individually
Part TypeExhaust Flange
BrandJEGS
Package Height1.0
Package Width5.75
Package Length21.0
Weight2.05 PG
Part CategoryPerformance Parts
Includes Stubs For Primary TubesNo
Gaskets IncludedNo
Header Flange Thickness0.375 in (9.525 mm)
Header Flange Port Size2 in (50.8 mm)
Header Flange Port ShapeSquare
Header Bolt PatternStock
Header Flange MaterialSteel
Part FitmentSemi Universal
Engine Make/SizeChevy Big Block (396-454)
Package Qty1
Package TypeEA
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