Description
If you’re running a 4.125″ big bore on your Twin Cam and pushing real power through forced induction, nitrous, or high compression, you need a head gasket engineered to handle the combustion pressures without fail. COMETIC’s MLX gaskets eliminate creep and brittleness with their proprietary fuel-resistant composition and center-layer design that simulates O-ring sealing where it matters most—right at the combustion chamber. Installation is straightforward, requiring no special machining, so you get professional-grade reliability without fabrication headaches.
- Bore diameter: 4.125″
- Thickness: .036″
- Type: MLX Multi-Layer Steel
- Application: Harley Twin Cam
- Material: Fuel-resistant premium composition
- Folded center layer design
- High-temperature coatings included
- Embossed micro-seal surface
- Ideal for turbo applications
- Ideal for high-compression builds
- Ideal for nitrous systems
- Bolt-on installation
- No special machining required
- Sold in pairs
- Made in the USA
- MPN: C10358-036






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