Auto Service World
News   May 28, 2009   by Auto Service World

Mahle Clevite Releases New Replacement Cylinder Head Gaskets for GM LS Series Engines


When the OE composite designed cylinder head gasket changed to an improved Multi-Layered Steel (MLS) design for the 4.8L and 5.3L in 2001, and 6.0L in 2002, the cylinder head gaskets were no longer interchangeable. This prevented engine builders and technicians from installing the best MLS designs in older engines of the GM LS series due to resulting coolant leaks.

Victor Reinz has engineered a replacement MLS gasket design that fits GM Gen III 4.8L, 5.3L (1999-2000) and 6.0L (1999-2001) series engines. These gaskets accommodate both the early and late style head design. Additionally, the MLS design features an embossed stainless steel stopper layer. Victor Reinz utilizes state-of-the-art Intellicoat blue FKM elastomer coating on the “active” layers. This special coating is recognized for the outstanding ability to seal the head and block mating surfaces (up to 60RA) without the need for exotic surfacing equipment and techniques.

GM LS series Gen III and IV, 4.8L, 5.3L, 5.7L, 6.0L and 7.0L from 1999 through 2009 are covered with these four new part numbers:

54441 – GM 4.8L VIN V, 5.3L VIN P, T & Z 1999-2007
54442 – GM 4.8L VIN C 2007-2008, 5.3L All VIN except P, T & Z 2005-2009, 5.7L 1997-2005
54445 – GM 6.0L VIN H, N & U 1999-2008
54446 – GM 7.0L 2006-2008

Consult your Victor Reinz gasket catalogue or your local distributor for exact application/part number detail. Go to www.mahleclevite.ca for more information.


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