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Vehicle Info NeededMLS Head Gasket, 4.640 in. Bore, 0.041 in. Thick for Chevy Big Block V8 Mark IV, Gen V and Gen VI
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Lowest Price GuaranteeFel-Pro 1077-041 is a PermaTorque MLS head gasket built for Big Block Chevy V8 engine sealing in performance rebuilds and demanding service work. Its multi-layer steel construction, formed combustion sealing beads, and blue aftermarket coating help manage high combustion pressure and heat while accommodating the varied surface finishes common in real-world engine work.
Fel-Pro 1077-041 Technical Specifications:
- Fits Chevy Big Block V8 engine families, including Mark IV, Gen V, and Gen VI applications.
- Multi-layer steel design uses bore bead sealing around the combustion area to support cylinder sealing under elevated pressure and temperature.
- 4.640 in. bore size and .041 in. compressed thickness support common performance and replacement build planning.
- 11.400 cc compressed volume provides a documented specification for compression ratio calculations.
- Polymer coatings and precision sealing beads are designed to work with less-than-perfect mating surfaces found during engine repair.
Use this gasket when refreshing, rebuilding, or upgrading a compatible Big Block Chevy V8 where MLS construction and application-specific sealing geometry are required. Always confirm deck and head surface condition, fastener choice, and final engine combination before assembly.
Modern Cylinder Heads Require a New Type of Gasket
Fel-Pro Cylinder Head Gaskets are stronger, more forgiving, and capable of sealing despite movement between the head and block. Such motion results from: lighter, thinner aluminum head castings that are more susceptible to thermal expansion; computer controls that can dramatically increase engine output; reduced clamping force that prevents stress points, and cylinder bore distortion.
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