Cometic C15262-070 Pontiac MLS Cylinder Head Gasket Bore - 326/389/421 V8 4.300

The Cometic C15262-070 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 .070 inches, providing excellent sealing performance for both stock and modified applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior strength and reliability
• 4.300-inch bore diameter designed for Pontiac V8 applications
• .070-inch compressed thickness for optimal sealing
• Accommodates thermal expansion and contraction during engine operation
• Engineered to handle high compression and boost applications
• Provides consistent clamping pressure across the entire sealing surface

Cometic MLS gaskets feature multiple layers of stainless steel with elastomeric coatings that adapt to sealing surface imperfections, making them ideal for performance builds, racing applications, and engines with aftermarket cylinder heads. The advanced MLS design ensures reliable combustion sealing while resisting blow-out under extreme cylinder pressures.