Vulcan CR Head Gasket LH GM LSX 4.200 X .059

The Vulcan CR Head Gasket LH GM LSX 4.200 X .059 is a premium cylinder head gasket engineered for GM LSX big-block and small-block engine platforms, specifically designed for left-hand applications on 4.200-inch bore configurations. This gasket exists to seal the critical interface between your cylinder head and engine block—one of the most demanding sealing surfaces in modern performance engines. Whether you're building a street cruiser, track-focused powerplant, or high-horsepower crate engine swap, a properly specified head gasket is non-negotiable for preventing coolant weeping, combustion blowby, and catastrophic head gasket failure.

SCE Gaskets' Vulcan CR formulation uses a multi-layer steel construction with a proprietary facing that combines conformability with durability under extreme combustion pressures and temperature cycling. The .059-inch (approximately 1.5mm) thickness specification is calibrated for LSX platforms running modern boost levels and high-rpm operation without crushing or excessive fretting. The left-hand configuration ensures proper gasket orientation for the driver-side cylinder head, critical for achieving consistent clamp load and preventing gasket walk on high-revving builds. This thickness and material pairing minimize blow-through risk while maintaining the precise combustion chamber volume tolerances that forced-induction and naturally aspirated LSX engines demand.

Engine builders, performance shops, and serious enthusiasts working on GM LSX-based engines—especially those running nitrous, supercharger, or turbo configurations—will recognize the Vulcan CR as the correct choice for applications requiring both reliability and repeatability. Installation requires proper head surface preparation, correctly torqued fasteners to manufacturer specifications, and OEM or equivalent performance bolts; this gasket pairs seamlessly with modern LS cylinder head designs on 4.200-inch bore blocks. If you're freshening a tired LSX engine or assembling a 500+ horsepower combination, specifying the correct left-hand head gasket thickness from the outset prevents expensive mid-build corrections and ensures your engine seals properly on the first dyno session.