Brian Tooley Racing MLS Head Gasket Set – BTR98544 – 4.8L/5.3L/LS1

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Enhance the sealing performance of your GM LS-series engine with the Brian Tooley Racing MLS Head Gasket Set (BTR98544). Designed for 4.8L, 5.3L, and LS1 applications, these multi- layer steel gaskets provide superior durability and leak resistance. Key Features: Material: Multi-Layer Steel (MLS) for optimal sealing Bore Size: 3.920" Compressed Thickness: 0.051" Quantity: Sold as a pair (sufficient for one engine) Compatibility: Fits GM Gen III/IV LS engines OEM Replacement: Direct replacement for GM part numbers 12589226 and 12589016 Ideal for performance builds, camshaft upgrades, or engine rebuilds, these head gaskets ensure a reliable seal under high-pressure conditions. Show more