The Cometic 2006+ GM LS7 7.0L 4.150 inch Bore .066 inch MLS-5 Head Gasket - C5889-066 is a precision-engineered head gasket with a 4.150" bore and .150" compressed thickness.
The Cometic 5-Layer Multi-Layer Steel (MLS) head gasket is engineered for high-performance and racing applications where OEM gaskets fall short. Featuring 5-Layer Multi-Layer Steel (MLS) construction, this gasket uses five embossed steel layers delivering exceptional clamping load distribution for high-output applications. 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.
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Material: 5-Layer Multi-Layer Steel (MLS)
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Bore Size: 4.150"
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Thickness: .150" compressed
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Part Number: C5889-066
Verified fitment: Chevrolet Camaro (2014–2015); Chevrolet Corvette (2006–2013).