BTR Brian Tooley Racing 7-Layer MLS LS Head Gasket Pair - 3.950" Bore - Fits 5.3L LS Engines - LM7 L59 LS4 LY5 LMG LMF LH6 LC9 - Performance Cylinder Head Gaskets

The Brian Tooley Racing (BTR) 7-Layer MLS Head Gasket Pair is the preferred solution for builders pushing the limits of 5.3L LS performance. Featuring a robust 7-layer multi-layer steel design, this gasket set is purpose-built for engines running boost, high compression, or nitrous—offering reliable sealing under the most extreme cylinder pressures. With a 3.950” bore size, these gaskets are tailored for use with stock or forged pistons in Gen III and Gen IV 5.3L engines, making them a great fit for both professional engine builders and weekend warriors alike. Whether you’re assembling a track-dedicated turbo car or a street-friendly NA build, BTR’s proven MLS design ensures maximum longevity, minimal blow-by, and proper head-to-block sealing. Compatible with LM7, L59, LS4, LY5, LMG, LMF, LH6, LC9, and more, this gasket pair is a go-to upgrade for top-end rebuilds, performance swaps, or complete engine builds.

• Advanced 7-Layer MLS Construction: These head gaskets feature a seven-layer Multi-Layer Steel (MLS) design, providing superior sealing capabilities and durability, especially under high-performance and boosted applications.
• Optimized for Small Bore Applications: With a 3.950" bore size, these gaskets are specifically engineered for 5.3L LS engines, ensuring a precise fit and optimal combustion chamber sealing.
• Enhanced Boost Handling: Utilizing the same sealing technology as the renowned LS9 gaskets, these are ideal for engines running higher boost levels, offering reliability and performance for turbocharged or supercharged setups.
• Comprehensive Compatibility: Designed to fit various 5.3L LS engine variants, including LM7, L59, LS4, LY5, LMG, LMF, LH6, and LC9, making them versatile for different builds and applications.
• High-Quality Manufacturing: Produced by Brian Tooley Racing, a trusted name in performance engine components, ensuring top-notch quality and performance for your engine build.