🎉 Up to 70% Off Selected ItemsShop Sale
HomeStore

Chevy Big Block Engines, Heavy Duty 3/8" Header Flange Kits (Available in 4 Options)

Chevy Big Block Engines, Heavy Duty 3/8" Header Flange Kits (Available in 4 Options)

Highlights

Patriot precision machined header flange kits are available for many popular engine families. Header flange kits come complete with gaskets and header bolts.

Our 3/8" Header flange kits have heavy duty 1100° F gaskets.

  • For Chevy Big Block (396-502) Engines
  • Choose from four options
    • 1 3/4" - 3" Tube Diameter with SAP Shape
    • 2 1/8" Tube Diameter with Round Shape
    • 2 1/4" Tube Diameter with Round Shape
    • 2 1/2" Tube Diameter with Round Shape
Select Tube Diameter & Port Shape
From $24.21

Original: $69.17

-65%
Chevy Big Block Engines, Heavy Duty 3/8" Header Flange Kits (Available in 4 Options)—

$69.17

$24.21
Product image 1
Product image 2
Product image 3
Product image 4

Description

Highlights

Patriot precision machined header flange kits are available for many popular engine families. Header flange kits come complete with gaskets and header bolts.

Our 3/8" Header flange kits have heavy duty 1100° F gaskets.

  • For Chevy Big Block (396-502) Engines
  • Choose from four options
    • 1 3/4" - 3" Tube Diameter with SAP Shape
    • 2 1/8" Tube Diameter with Round Shape
    • 2 1/4" Tube Diameter with Round Shape
    • 2 1/2" Tube Diameter with Round Shape

You may also like

-65%NEW
Thumbnail 1

1955-57 Chevy Passenger Car/Wagon 1 7/8" Tri-5 Long Tube Chevy Big Block Engine Swap Header in Raw Steel (Requires Maval/Unisteer Rack & Pinion Steering using Danchuk Mount Kit or equivalent)

$508.55

$177.99

-65%NEW
Thumbnail 1

1955-57 Chevy Passenger Car/Wagon 1 7/8" Tri-5 Long Tube Chevy Big Block Engine Swap Header with Metallic Ceramic Coating (Requires Maval/Unisteer Rack & Pinion Steering using Danchuk Mount Kit or equivalent)

$820.28

$287.10

-65%NEW
Thumbnail 1

1955-57 Chevy Passenger Car/Wagon 1 7/8" Tri-5 Long Tube Chevy Big Block Engine Swap Header with Hi-Temp Black Coating (Requires Maval/Unisteer Rack & Pinion Steering using Danchuk Mount Kit or equivalent)

$573.20

$200.62

-65%NEW
Thumbnail 1

Chevy Big Block Engines, 2 1/4" Sprint Style Weld-Up Kit

$529.70

$185.40

NEW
Thumbnail 1

1955-57 Chevy Passenger Car/Wagon 1 7/8" Tri-5 Long Tube Chevy Big Block Engine Swap Header with Hi-Temp Black Coating

$374.00

NEW
Thumbnail 1

1970-74 Chevy Big Block V8 Full-Size & A-Body 1 7/8" Long Tube Header with Metallic Ceramic Coating

$635.47

-65%NEW
Thumbnail 1

1955-57 Chevy Passenger Car/Wagon 2" Tri-5 Fenderwell Chevy Big Block Engine Swap Header with Metallic Ceramic Coating

$762.48

$266.87

NEW
Thumbnail 1

Chevy Big Block 572 Engines, Heavy Duty 3/8" Header Flange Kit

$103.77

-65%NEW
Thumbnail 1

1968-75 Chevy Big Block V8 2" Long Tube Header with Hi-Temp Black Coating

$416.57

$145.80

-65%NEW
Thumbnail 1

1955-57 Chevy Passenger Car/Wagon 1 7/8" Tri-5 Long Tube Chevy Big Block Engine Swap Header in Raw Steel

$393.05

$137.57

-65%NEW
Thumbnail 1

1965–72 Chevy Big Block V8 2" Long Tube Header with Hi-Temp Black Coating

$395.79

$138.53

NEW
Thumbnail 1

Chevy Big Block Engines, Header Flange Gaskets

$37.45