Cometic C5712-070 MLS Cylinder Head Gasket Pontiac Bore - 400/428/455 V8 4.300 070

The Cometic C5712-070 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Pontiac 400, 428, and 455 cubic inch V8 engines. This precision gasket features a 4.300-inch bore diameter and .070-inch compressed thickness, making it ideal for performance and racing applications where increased compression or deck resurfacing requires a thicker gasket.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme conditions
• 4.300-inch bore diameter accommodates stock and slightly overbored cylinders
• .070-inch compressed thickness for high-compression builds or resurfaced decks
• Engineered specifically for Pontiac 400, 428, and 455 V8 engines
• Handles high cylinder pressures and temperature fluctuations in performance applications
• Premium embossed stainless steel layers with elastomeric coating for optimal sealing

Cometic's MLS gaskets are the industry standard for performance engine builds, offering exceptional combustion sealing and resistance to gasket failure. The multiple layers of stainless steel provide the ability to rebound and maintain seal integrity through thermal cycling and engine movement, making this gasket an excellent choice for street performance, drag racing, and engine rebuilds requiring thicker head gaskets.