BTR Brian Tooley Racing MLS LS9 Head Gasket Pair - 4.100" Bore - Replaces GM Part #12622033 - Multi-Layer Steel for Turbo, Supercharged & Performance LS Builds

BTR Brian Tooley Racing MLS LS9 Head Gasket Pair - 4.100" Bore - Replaces GM Part #12622033 - Multi-Layer Steel for Turbo, Supercharged & Performance LS Builds

• High-Performance MLS Head Gasket Pair – Includes two (2) BTR LS9 multi-layer steel gaskets, built to handle high cylinder pressures in turbo, supercharged, and nitrous LS engines.
• 4.100” Bore Compatibility – Ideal for strokers, forged rotating assemblies, and large bore builds, delivering precise sealing and optimal combustion chamber integrity.
• Built for Boost – Based on the proven GM LS9 design, these gaskets are perfect for forced induction applications where traditional head gaskets may fail under pressure.
• Multi-Layer Steel Construction – Features a durable MLS design with proprietary coatings for exceptional head sealing, heat resistance, and long-term durability.
• Replaces GM 12622033 – Drop-in replacement for factory LS9-style gaskets with enhanced sealing properties for performance and racing engines.

BTR LS9 Cylinder Head Gaskets MLS PAIR 4.100" bore, .055" compressed thickness, 7 layer These are possibly THE best gaskets for engines up to 4.100" bore. Very common head gasket to use on Turbo and Supercharged engines.