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Cometic C4303-040 MLS Cylinder Head Gasket for Jaguar Engine - 3.4L XK6

(1951-1957 Jaguar Mark VII; 1957-1958 Jaguar Mark VIII; 1949-1953 Jaguar XK120; 1955-1957 Jaguar XK140; 1958-1961 Jaguar XK150)

Part of: Cometic MLS Cylinder Head Gasket Bore Honda

Other options in this family: Cometic C4311-040 Cometic C4251-030 Cometic C4232-030 Cometic C4962-028 Cometic C5434-051

Manufacturer

Picture for manufacturer Cometic

Part Number

C4303-040
4 reviews
Sale Price

$169.44

Estimated ship date Tuesday, November 24

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Product Details

The Cometic C4303-040 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for the classic Jaguar 3.4L XK6 inline-six engine. This gasket features a .040" (1.0mm) compressed thickness and an 85mm bore diameter, making it ideal for stock and mild performance applications.

Key Features:

  • Multi-Layer Steel (MLS) construction for superior sealing and durability
  • .040" compressed thickness provides optimal compression ratio control
  • 85mm bore diameter precisely matches Jaguar XK6 cylinder specifications
  • Advanced embossment technology ensures consistent clamp load distribution
  • Viton rubber gasket coating withstands extreme temperatures and pressures
  • Resistant to coolant, oil, and combustion gases
  • Reusable design allows for multiple installations when properly maintained

Cometic's MLS gaskets are constructed from multiple layers of stainless steel, with each layer serving a specific purpose to maximize sealing performance. The outer layers feature proprietary coatings that micro-seal surface imperfections, while the inner layers provide the structural strength needed to handle high cylinder pressures. This gasket is an excellent choice for restoring classic Jaguar XK models or building period-correct performance engines.

Products specifications

Fits

1951-1957 Jaguar Mark VII; 1957-1958 Jaguar Mark VIII; 1949-1953 Jaguar XK120; 1955-1957 Jaguar XK140; 1958-1961 Jaguar XK150

Prop 65

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

Material

Multi-layer Steel

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