Cometic C5889-040 GM MLS Cylinder Head Gasket Bore Thick - LS7 Gen-4 4.150 040

The Cometic C5889-040 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LS7 Gen-4 small block V8 engines with aftermarket sleeve applications. This precision gasket features a 4.150-inch bore diameter and .040-inch compressed thickness, providing exceptional sealing capability for high-compression and forced induction builds.

Key Features:

• Multi-Layer Steel (MLS) construction for superior combustion sealing and durability
• 4.150-inch bore diameter designed for aftermarket sleeve applications
• .040-inch compressed thickness allows fine-tuning of compression ratios
• Engineered specifically for GM LS7 Gen-4 small block V8 platforms
• Provides exceptional recovery and maintains constant seal pressure under extreme conditions
• Resists blowout and gasket failure in high-performance applications

Cometic's MLS gaskets utilize multiple layers of stainless steel with advanced coating technology to create a gasket that can withstand the demanding conditions of racing, boosted, and high-compression engines. The .040-inch thickness makes this gasket ideal for builders looking to optimize compression ratios in sleeved LS7 engine builds.

Important: This gasket is designed for aftermarket sleeve applications only and requires proper surface preparation and torque specifications for optimal performance.