92mm MLS Head Gasket .040 - Ford 4.6L LH

The 92mm MLS Head Gasket .040 - Ford 4.6L LH from Cometic Gaskets is a precision-engineered cylinder head gasket designed for Ford's modular engine platform. This driver-side gasket is essential for any Ford 4.6L build where compression thickness and bore accuracy are non-negotiable—whether you're rebuilding a stock engine, chasing reliability in a high-mileage block, or pushing boost in a modified application. A quality head gasket is the foundation of engine sealing; failure here means catastrophic coolant loss, combustion leakage, and potential head gasket failure that can cost thousands in machine work.

Cometic's multi-layer steel (MLS) construction delivers superior sealing performance compared to traditional composite gaskets. The .040-inch compression thickness is precision-controlled to ensure proper clamp load and consistent bore diameter across the entire sealing surface. The 92mm bore specification is engineered to match the Ford 4.6L cylinder configuration exactly, eliminating gaps that can lead to combustion leakage or coolant weeping. MLS gaskets use multiple steel layers with elastomer coating to handle thermal cycling and pressure fluctuations without relaxation or permanent set—critical when you're running higher compression ratios, turbocharging, or subjecting the engine to sustained power output.

Builders and mechanics working on Ford modular engines—from Mustang GT platform conversions to expedition motor swaps—trust Cometic's engineering for durability and leak-free performance. This LH (driver-side) gasket is mandatory for any full rebuild or head service on the 4.6L block. Proper installation requires correct head bolt torque sequencing and a clean mating surface; always use a quality torque wrench and follow Ford's factory specification for head bolt preload. Whether you're replacing a leaking gasket or building a long-block from scratch, the 92mm MLS Head Gasket .040 ensures your engine compartment stays dry and combustion stays sealed.