Cometic C15262-036 MLS Cylinder Head Gasket Pontiac Bore - 326 389 421 V8 4.300

The Cometic C15262-036 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Pontiac 326, 389, and 421 cubic inch V8 engines. This precision-manufactured gasket features a 4.300-inch bore diameter and a compressed thickness of .036 inches, making it ideal for both stock rebuilds and performance applications.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme combustion pressures
• 4.300-inch bore diameter designed for Pontiac 326/389/421 V8 engines
• .036-inch compressed thickness allows for precise compression ratio tuning
• Advanced embossment technology ensures consistent clamping pressure across the entire sealing surface
• Stainless steel construction resists corrosion and withstands high temperatures
• Eliminates the need for sealants or re-torquing after installation

Cometic MLS gaskets are constructed from multiple layers of stainless steel, with each layer serving a specific purpose in the sealing process. The outer layers are embossed to handle surface imperfections, while the inner layers provide structure and recovery. This design allows the gasket to adapt to minor surface irregularities and maintain a superior seal even under extreme cylinder pressures found in performance and racing applications.

This gasket is an excellent choice for engine builders seeking a reliable, high-performance sealing solution for classic Pontiac V8 engines. Compatible with both cast iron and aluminum cylinder heads when used with proper surface preparation.