4.165 MLX Head Gasket .040 - SBC

The 4.165 MLX Head Gasket .040 - SBC by Cometic Gaskets is a precision-engineered sealing solution designed specifically for high-output Small Block Chevy engines. Whether you are building a high-performance street machine or a dedicated track vehicle, maintaining a reliable seal between the cylinder head and engine block is critical for long-term engine health. This gasket exists to provide a superior alternative to traditional composite options, offering the extreme durability required for modern performance builds. Enthusiasts looking to buy a reliable head gasket will find that this multi-layered stainless steel design handles the increased thermal and mechanical stresses of modified engines with ease.

Constructed from premium multi-layered stainless steel, the 4.165 MLX Head Gasket .040 - SBC features Cometic's advanced Multi-Layer Stopper technology. This specific design incorporates an integrated stopper layer that provides a primary combustion seal, significantly reducing the risk of gasket failure under high cylinder pressures. The 4.165-inch bore size and 0.040-inch compression thickness allow for precise quench height adjustments, which is vital for optimizing combustion efficiency and preventing detonation. The stainless steel construction ensures excellent recovery characteristics and resistance to corrosion, maintaining its structural integrity over countless heat cycles.

This gasket is engineered for Small Block Chevy applications, making it a staple for builders who demand exact specifications and professional-grade performance. It is highly recommended for use with aluminum heads on cast iron blocks or full aluminum assemblies, as the multi-layer design effectively compensates for the different expansion rates of these metals. When reviewing the specifications for your next engine overhaul, ensure your block's bore size matches the 4.165-inch diameter of this gasket for a perfect fit. For sale as a single unit, this gasket provides the high-tensile strength and reliable sealing performance required for both naturally aspirated and forced induction setups.