SKU: SKU: CGSPRO1040T-045
The Cometic GM L59/LM7/LR4 Small Block V8 Top End Gasket Kit-3.840in Bore-.045in MLS Cyl Head Gasket - PRO1040T-045 is a precision-engineered head gasket with a 3.840" bore and .840" compressed thickness.
The Cometic Multi-Layer Steel (MLS) head gasket is engineered for high-performance and racing applications where OEM gaskets fall short. Featuring Multi-Layer Steel (MLS) construction, this gasket uses multiple embossed steel layers that conform to surface irregularities and maintain a positive seal. Precision CNC-machined to exacting tolerances, this gasket seals combustion, water jackets, and oil passages simultaneously — eliminating the need for multiple gaskets or sealing compounds.
Verified fitment: Buick LaCrosse (2008–2009); Buick Rainier (2004–2007); Cadillac Escalade (2002–2005); Chevrolet Avalanche (2007–2013); Chevrolet Avalanche 1500 (2002–2006); Chevrolet Colorado (2009–2012); Chevrolet Express 1500 (2003–2009); Chevrolet Express 2500 (2003–2009); and 21 more.