Cometic C5475-051 MLS Cylinder Head Gasket GM Gen Bore - LS1/LS2/LS3/LS6 3/4 3.910 051

The Cometic C5475-051 is a Multi-Layer Steel (MLS) cylinder head gasket engineered for GM LS Gen 3 and Gen 4 small block V8 engines, including LS1, LS2, LS3, and LS6 applications. Featuring a 3.910" bore diameter and 0.051" compressed thickness, this gasket is designed to deliver maximum sealing performance in high-output street and performance engines. Sold individually.

Key Features:

• Three-layer stainless steel construction provides superior strength, rebound ability, and corrosion resistance
• Embossed outer layers coated on both sides with Viton fluoroelastomer rubber — heat resistant to 482°F (250°C) — for reliable sealing across varied load conditions and surface finishes
• Uncoated stainless steel center shim layer can be varied to accommodate multiple thickness requirements
• No sealants required — MLS design provides a complete, ready-to-install seal
• Bore Diameter: 3.910" (Round)
• Compressed Thickness: 0.051"
• Volume: 10.0cc
• Compatible with aluminum head-to-aluminum block and aluminum head-to-cast iron block configurations
• Ideal for high cylinder pressure, high-performance, and forced induction builds

Cometic MLS head gaskets are a trusted choice among performance builders and motorsports teams. The combination of stainless steel layering and Viton coating ensures a durable, leak-free seal that holds up under extreme temperatures and cylinder pressures common in modified LS-series engines.