GM LS Cyl Head Gasket 4.100 Bore .050

The MAHLE ORIGINAL/CLEVITE GM LS Cylinder Head Gasket with 4.100 inch bore and 0.050 inch compression thickness is a direct-fit replacement for GM LS-series engines requiring OEM-specification cylinder head sealing. This multi-layer steel gasket delivers reliable combustion chamber sealing across the full operating range of LS powerplants, from street engines to sustained high-load applications. Proper head gasket selection is critical—incorrect bore size or compression thickness will result in combustion leakage, coolant seepage, and potential cylinder head warping.

The 4.100 inch bore specification matches LS engines with this cylinder diameter, while the 0.050 inch compressed thickness maintains the correct combustion chamber height and compression ratio for your specific engine combination. Multi-layer steel construction provides superior sealing durability compared to single-layer alternatives, particularly important in boost applications or engines operating at elevated peak cylinder pressures. The gasket's engineered composition is designed to accommodate typical LS head bolt torque sequences and thermal cycling without compromising the seal interface.

This gasket is essential for engine rebuilds, head replacement, or head gasket failure repair on LS-platform engines. Whether performing routine maintenance on a stock LS motor or reassembling a modified engine for street or competition use, OEM-equivalent specifications ensure compatibility with factory or aftermarket cylinder heads machined for this bore diameter. MAHLE ORIGINAL and CLEVITE are recognized manufacturers of OEM-equivalent engine gaskets for General Motors platforms, making this replacement a standard choice among engine builders and technicians working with LS powerplants.