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Cometic C5721-066 Buick 3800 Series II/III V6 MLS Head Gasket .066" 3.840" Bore

(Chevrolet Camaro 1996-2002, Impala 2000-03, Monte Carlo 1998-2003, Lumina 1998-99; Pontiac Firebird 1996-2002, Grand Prix 1997-2003 + 10 more models)

Manufacturer

Part Number

C5721-066
Sale Price

$144.16

Estimated ship date Friday, November 20

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Product Details

The Cometic C5721-066 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for Buick 3800 Series II and Series III V6 engines. This gasket features a .066" compressed thickness and is manufactured to accommodate a 3.840" bore diameter, making it ideal for performance builds and engine rebuilds.

Key Specifications:

  • Multi-Layer Steel (MLS) construction for superior sealing and durability
  • .066" compressed gasket thickness
  • 3.840" bore diameter
  • Compatible with Buick 3800 Series II and Series III V6 engines
  • Designed for right-hand side (RHS) cylinder head application
  • Provides excellent resistance to combustion pressure and temperature extremes

Cometic's MLS gaskets feature multiple layers of stainless steel with proprietary coatings that ensure optimal sealing under extreme conditions. The gasket's design accommodates thermal expansion and contraction while maintaining consistent clamping force across the sealing surface, making it an excellent choice for stock rebuilds, performance upgrades, and forced induction applications.

Products specifications

Fits

Chevrolet Camaro 1996-2002, Impala 2000-03, Monte Carlo 1998-2003, Lumina 1998-99; Pontiac Firebird 1996-2002, Grand Prix 1997-2003, Bonneville 1996-2003; Buick Regal 1996-2003, LeSabre 1996-2003, Park Avenue 1996-2003 + 6 more models

Prop 65

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

Material

Multi-layer Steel

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