Top End MLS Gasket Kit - 426 Hemi

The Top End MLS Gasket Kit - 426 Hemi by Cometic Gaskets is engineered for serious engine builders and mechanics pushing high-performance big-block Chrysler power. Whether you're rebuilding a vintage muscle car, a modern restomod, or a dedicated drag platform, this complete top-end gasket set ensures a leak-free seal under extreme combustion pressures and temperature swings. Designed specifically for the legendary 426 Hemi platform, it addresses the exacting clearance and sealing demands that come with stroker builds, nitrous applications, and forced induction setups.

Cometic's Multi-Layer Steel (MLS) construction provides superior gasket face flatness and consistent clamp load retention compared to traditional composite materials, critical when cylinder heads experience thermal cycling and mechanical stress. The MLS design relies on precise surface finishes and head/block alignment to create a true metal-to-metal seal that resists blow-by even at peak boost or nitrous delivery. This top-end kit includes all cylinder head gaskets, intake manifold gasket, valve cover gaskets, and auxiliary sealing surfaces—eliminating the guesswork of piecing together compatible components and ensuring proper material compatibility across all sealing points.

This gasket kit is ideal for engine rebuilds, performance upgrades, and head gasket replacement on 426 Hemi engines used in Dodge and Chrysler muscle cars, race vehicles, and hot rods. Proper surface preparation—decking the block and heads to OEM specifications—is essential for MLS gasket performance; even 0.005" of warpage can compromise sealing integrity. Whether paired with stock internals or a full forged rotating assembly, the Top End MLS Gasket Kit - 426 Hemi delivers the reliability and durability that discerning engine builders demand when precision and performance cannot be compromised.