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Cometic C15262-040 Pontiac MLS Head Gasket Bore - 326/389/421 V8 4.300

(1964-1966 Pontiac GTO; 1962-1966 Pontiac Grand Prix; 1959-1966 Pontiac Bonneville; 1959-1966 Pontiac Catalina; 1961 Pontiac Tempest + 2 more models)

Part of: Cometic MLS Head Gasket Bore Honda

Other options in this family: Cometic C10336-036 Cometic H4230050S Cometic C9931 Cometic C10084040 Cometic C10083-030

Manufacturer

Picture for manufacturer Cometic

Part Number

C15262-040
6 reviews
Sale Price

$107.16

Estimated ship date Wednesday, November 25

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Product Details

The Cometic C15262-040 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket designed specifically for Pontiac 326, 389, and 421 cubic inch V8 engines. This precision-engineered gasket features a 4.300-inch bore diameter and .040-inch compressed thickness, providing exceptional sealing and durability for both stock and modified applications.

Key Features:

  • Multi-Layer Steel (MLS) construction for superior sealing and durability
  • .040-inch (1.02mm) compressed gasket thickness
  • 4.300-inch bore diameter optimized for Pontiac V8 engines
  • Engineered to withstand extreme cylinder pressures and temperatures
  • Allows for minor surface imperfections while maintaining proper seal
  • Compatible with Pontiac 326, 389, and 421 cubic inch V8 engines

Cometic MLS gaskets utilize multiple layers of stainless steel with advanced coating technology to create a reliable seal that accommodates thermal expansion and engine movement. The flexible design conforms to sealing surfaces better than conventional composite gaskets, making them ideal for performance builds, high-compression engines, and applications with forced induction.

Products specifications

Fits

1964-1966 Pontiac GTO; 1962-1966 Pontiac Grand Prix; 1959-1966 Pontiac Bonneville; 1959-1966 Pontiac Catalina; 1961 Pontiac Tempest; 1960-1961 Pontiac Ventura; 1959-1966 Pontiac Star Chief

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Material

Multi-layer Steel

Knowledge of product was great

Very easy!

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