Fits: 2002–2006 Chevrolet Avalanche 1500 1997–2002, 2010–2015 Chevrolet Camaro 1997–2013 Chevrolet Corvette 2003–2007 Chevrolet Express 2500 1999–2013 Chevrolet Silverado 1500 1999–2000 Chevrolet Silverado 2500 2000–2013 Chevrolet Suburban 1500 2000–2013 Chevrolet Tahoe 2003–2006 Chevrolet SSR 2005–2007 Chevrolet Express 3500 2006–2009 Chevrolet Trailblazer 2007–2013 Chevrolet Avalanche 2007 Chevrolet Silverado 1500 Classic 2009–2012 Chevrolet Colorado 2014–2017 Chevrolet SS 2003–2006 Chevrolet Trailblazer EXT 2003–2007 GMC Savana 1500 2003–2007 GMC Savana 2500 1999–2013 GMC Sierra 1500 1999–2000 GMC Sierra 2500 2000–2013 GMC Yukon 2000–2013 GMC Yukon XL 1500 2004–2007 GMC Savana 3500 2005–2009 GMC Envoy 2007 GMC Sierra 1500 Classic 2009–2012 GMC Canyon 2004–2005 GMC Envoy XUV 2003–2006 GMC Envoy XL 1997–2002 Pontiac Firebird 2004–2006 Pontiac GTO 2009 Pontiac G8 2001–2004 Avanti II 2004–2007 Cadillac CTS Cometic GasketC5475-040Head GasketsCOMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's 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 flouroelastomer 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.Cometic MLS head gaskets are constructed from multiple layers of stainless steel for strength and contain load-controlled embossments that conform load distribution across the sealing area. This creates an exceptional seal by requiring less clamp load—resulting in less bore distortion. The stainless steel outer layers utilize FKM (Viton®) rubber coating, a high-temperature and chemical-resistant polymer. A topcoat of PTFE aids in resistance to fret and increased cold sealing. MLS head gaskets are available for most aftermarket cylinder heads; as with all of Cometic's MLS head gaskets, no sealants or re-torque is required.
