Cometic Buick 3800 Series II/III V6 .084in MLS Cylinder Head Gasket - 3.840in Bore - LHS - C5720-084

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.098". Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.

This Part Fits:

Year	Make	Model	Submodel
1996-2003	Buick	LeSabre	Custom
1996-2003	Buick	LeSabre	Limited
1996-2003	Buick	Park Avenue	Base
1996-2003	Buick	Park Avenue	Ultra
1998	Buick	Regal	25th Anniversary Edition
1996	Buick	Regal	Custom
1996	Buick	Regal	Gran Sport
1997-2003	Buick	Regal	GS
2000	Buick	Regal	GSE
1996	Buick	Regal	Limited
1997-2003	Buick	Regal	LS
2000	Buick	Regal	LSE
1996	Buick	Regal	Olympic Gold Edition
1996-1999	Buick	Riviera	Base
1996-2002	Chevrolet	Camaro	Base
1996-1997	Chevrolet	Camaro	RS
2000-2003	Chevrolet	Impala	Base
2000-2003	Chevrolet	Impala	LS
2003	Chevrolet	Impala	LS Sport
1999	Chevrolet	Lumina	Base
1998-1999	Chevrolet	Lumina	LS
1998-1999	Chevrolet	Lumina	LTZ
1999	Chevrolet	Monte Carlo	Indianapolis 500 Pace Car
1999	Chevrolet	Monte Carlo	LS
2000-2003	Chevrolet	Monte Carlo	SS
2002	Chevrolet	Monte Carlo	SS 35th Anniversary Edition
2002	Chevrolet	Monte Carlo	SS Dale Earnhardt Signature Edition
2003	Chevrolet	Monte Carlo	SS High Sport
2003	Chevrolet	Monte Carlo	SS Pace Car
1998-1999	Chevrolet	Monte Carlo	Z34
1999	Oldsmobile	88	50th Anniversary Edition
1996-1999	Oldsmobile	88	Royale
1996-1999	Oldsmobile	88	Royale LS
1996	Oldsmobile	98	Regency Elite
1998	Oldsmobile	Intrigue	Base
1998-1999	Oldsmobile	Intrigue	GL
1998-1999	Oldsmobile	Intrigue	GLS
1999	Oldsmobile	Intrigue	GX
1996-1999	Oldsmobile	LSS	Base
1997-1998	Oldsmobile	Regency	Base
1996-2003	Pontiac	Bonneville	SE
2000-2003	Pontiac	Bonneville	SLE
1996-1999	Pontiac	Bonneville	SSE
1996-2003	Pontiac	Bonneville	SSEi
1996-2002	Pontiac	Firebird	Base
1997-2003	Pontiac	Grand Prix	GT
1997-2003	Pontiac	Grand Prix	GTP
1997-2002	Pontiac	Grand Prix	SE

Please note image may vary from product. Also, some items are special order. If delivery time is a concern, please contact us prior to purchase. 

If you need a Gasket Cometic likely makes the best version of it you can buy. Being the go to name in gaskets, you can be sure you get quality and perfect fit every time!

Cometic Gasket offers a wide range of high-performance sealing solutions, with their head gaskets being one of their most popular products. Designed for both street and racing vehicles, these gaskets come in materials like multi-layer steel (MLS), copper, and composite, providing a reliable seal even under extreme pressure and heat. Whether for everyday driving or high-performance racing, Cometic head gaskets are built to ensure durability and performance in the most demanding conditions.

The company also manufactures engine gaskets for key components such as valve covers, oil pans, intake manifolds, and exhaust systems. These gaskets are engineered to handle high temperatures and pressures, preventing leaks and ensuring optimal engine performance. Cometic Gasket’s expertise extends to creating custom gaskets for unique or modified engines, allowing professionals and enthusiasts to get tailored solutions for specialized applications.

Cometic Gasket is deeply involved in motorsports, providing high-performance gaskets used in racing engines across disciplines like NASCAR, drag racing, and Formula 1. Their products are trusted by racing teams and engine builders who require top-notch sealing solutions under extreme conditions. In addition, Cometic’s use of advanced materials like MLS ensures that their gaskets offer superior strength, flexibility, and heat resistance, making them ideal for high-performance engines.

Serving the motorsports, automotive, and industrial sectors, Cometic Gasket has built a reputation for innovation and customization. Whether for performance vehicles, race teams, or industrial machinery, they continue to develop cutting-edge gasket solutions that meet the highest standards of quality and reliability.

About Fidanza Performance-

​Fidanza Performance, founded in 1997, is a leading US manufacturer of high-quality lightweight aluminum flywheels, precision adjustable cam gears, and high-performance clutches. With nearly 20 years in the automotive performance market, Fidanza is renowned for its expertise and respected globally, offering products for a wide range of vehicles, from European sports cars to modern muscle cars and imports. The company originated in racing, with founder Lou Fidanza's success in the SCCA leading to the creation of specialty parts like aluminum flywheels. Fidanza has since expanded its product line to include cam gears and performance clutches, gaining a loyal customer base and worldwide recognition. In 2023 Fidanza opened the Fidanza Marketplace which sells other manufacturers quality high performance parts!