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Cometic C5691-066 Buick Stage I/II MLS Cylinder Head Gasket Bore - V6 3.860

(Cadillac DeVille 1980-82, Eldorado 1981-82, Seville 1981-82, Fleetwood 1980-82; Chevrolet Camaro 1980-81, 1995-2002, Impala 1980-85, 2000-05 + 49 more models)

Manufacturer

Picture for manufacturer Cometic

Part Number

C5691-066
7 reviews
Sale Price

$126.68

Estimated ship date Monday, November 23

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Product Details

The Cometic C5691-066 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Buick Stage I and Stage II V6 engines. This precision-manufactured gasket features a .066" compressed thickness and accommodates a 3.860" bore diameter, making it ideal for performance builds and engine rebuilds requiring superior sealing capabilities.

Key Features:

  • Multi-Layer Steel (MLS) construction for maximum durability and heat resistance
  • .066" compressed gasket thickness for precise compression control
  • 3.860" bore diameter designed for Buick Stage I and Stage II V6 engines
  • Advanced embossment technology ensures even clamping pressure distribution
  • Superior resistance to combustion chamber pressures and thermal expansion
  • Eliminates leak paths between cylinder head and engine block

Cometic MLS gaskets are the preferred choice for performance enthusiasts and professional engine builders. The multi-layer steel design provides exceptional conformability to sealing surfaces while maintaining structural integrity under extreme heat and pressure conditions. This gasket is essential for ensuring optimal compression ratios and preventing coolant and oil contamination in high-performance Buick V6 applications.

Products specifications

Fits

Cadillac DeVille 1980-82, Eldorado 1981-82, Seville 1981-82, Fleetwood 1980-82; Chevrolet Camaro 1980-81, 1995-2002, Impala 1980-85, 2000-05, Malibu 1978-83, Caprice 1980-85, El Camino 1978-84, Monte Carlo 1978-87, 1998-2005 + 45 more models

Prop 65

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

Material

Multi-layer Steel

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Found my item easily the price was reasonable and would recommend them!!!

Order process was easy enough...really like the PayPal payment option...a bit disappointed that it did not include the anodized adapter as pictured but it otherwise as expected.

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