GM LS Cyl Head Gasket 4.063 Bore .050 LSA/LS9

The GM LS Cyl Head Gasket 4.063 Bore .050 LSA/LS9 from MAHLE ORIGINAL/CLEVITE is a crucial engine seal designed for General Motors' LS and LSA engine families. This gasket is ideal for mechanics and engine builders who are rebuilding stock LS engines, upgrading to LSA supercharged platforms, or restoring high-performance LS9 powerplants.

Engineered to ensure proper combustion chamber sealing, this head gasket prevents coolant or oil leakage at the cylinder head interface. It features a 4.063-inch bore diameter and a .050-inch thickness, accommodating the precise deck heights and combustion chamber volumes of LS, LSA, and LS9 cylinder heads. The multi-layer steel construction with elastomer facing provides reliable sealing under extreme conditions.

This gasket is suitable for engine rebuilds, head gasket replacements, and complete engine swaps, making it compatible with all LS-platform variants, including naturally aspirated LS1, LS2, and LS3 engines. By using the correct .050 gasket, users can ensure optimal clamping load distribution across the head deck surface, which is essential for maintaining compression ratios across all eight cylinders.