The Cometic GM LM7/LQ4 Vortec Small Block V8 Top End Gasket Kit-4.020in Bore-.051in MLS Cyl Head Gasket - PRO1008T-051-4020 is a precision-engineered head gasket with a 4.020" bore and .020" 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.
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Material: Multi-Layer Steel (MLS)
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Bore Size: 4.020"
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Thickness: .020" compressed
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Part Number: PRO1008T-051-4020