Chevy Big Block Engines, Seal-4-Good Header Flange Gaskets (Available in 5 Options)

Seal-4-Good flange gaskets offer you a reusable blow proof gasket at an affordable price. The multi-layered “dead soft” aluminum is malleable and conforms to your flange again and again. Seal-4-Good reusable flange gaskets can also be easily and precisely port matched for uninterrupted flow.

• For Chevy Big Block Engines
• Five Port Shape/Size Options:
  • 1.875" Round port
  • 2.15" Round port
  • 2.42" Round port
  • 1.88" x 1.92" Stock Square port
  • 2.125" Square port
• Constructed of "dead soft" aluminum
• 100% reusable
• Multiple layers conform to header flanges and small imperfections that copper gaskets simply cannot
• Port matched to create the ultimate seal for uninterrupted flow
• Will not blow out or burn out