Cometic Chevy BBC / Dart 2 Bolt Intake Block 4.58inch Bore .040 thick MLS Head Gasket - C5640-040

The Cometic Chevy BBC / Dart 2 Bolt Intake Block 4.58inch Bore .040 thick MLS Head Gasket - C5640-040 is a precision-engineered head gasket with a 4.580" bore and .58" 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: 4.580"
• Thickness: .58" compressed
• Part Number: C5640-040