Cometic GM LS1/LS6 Gen-3 Small Block V8 Top End Gasket Kit-4.040in Bore-.051in MLS Cyl Head Gasket - PRO1007T-4040-051

The Cometic GM LS1/LS6 Gen-3 Small Block V8 Top End Gasket Kit-4.040in Bore-.051in MLS Cyl Head Gasket - PRO1007T-4040-051 is a precision-engineered head gasket with a 4.040" bore and .040" 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.

• Material: Multi-Layer Steel (MLS)
• Bore Size: 4.040"
• Thickness: .040" compressed
• Part Number: PRO1007T-4040-051

Verified fitment: Chevrolet Camaro (1998–2002); Chevrolet Corvette (1997–2004); Pontiac Firebird (1998–2002); Pontiac GTO (2004).