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El Salvador, San Salvador
1 Level
701 Review
38 Karma

Review on Enhance Performance with Mr. Gasket - πŸ”₯ 5911 Ultra-Seal Header Gaskets for Big Block Chev by Adam Price

Revainrating 5 out of 5

When using simple round manifolds on large square port block inspection heads (1974 454 in my case) 5911 gasket is best

I was between them and copper/aluminum gaskets, port sizes were crucial. When using simple round manifolds on large square port actuator heads (1974 454 in my case) the 5911 gasket is best suited to accommodate the two shapes. They're perfectly sealed, but don't count on them being reused. Once compressed, they will usually leak if you remove the head and try to reuse them. Plus, you can cheat with them with Permatex Ultra Copper silicone.

Pros
  • Expanded steel core provides stability and maximum torque retention to avoid gasket failure
Cons
  • Protection