
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
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
Original: $76.85
-65%$76.85
$26.90Description
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












