Cometic GM Gen-V/VI Big Block V8 .040in MLX Cylinder Head Gasket - 4.560in Bore - C15656-040

The Cometic GM Gen-V/VI Big Block V8 .040in MLX Cylinder Head Gasket - 4.560in Bore - C15656-040 is a precision-engineered head gasket with a 4.560" bore and .040" compressed thickness.

The Cometic MLX Multi-Layer Steel (MLS) head gasket is engineered for high-performance and racing applications where OEM gaskets fall short. Featuring MLX Multi-Layer Steel (MLS) construction, this gasket uses multiple embossed steel layers for superior sealing under extreme cylinder pressures and temperatures. 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: MLX Multi-Layer Steel (MLS)
• Bore Size: 4.560"
• Thickness: .040" compressed
• Part Number: C15656-040

Verified fitment: Chevrolet C1500 (1991–1993); Chevrolet C2500 (1991–1995); Chevrolet C2500 Suburban (1992–1995); Chevrolet C3500 (1991–1995); Chevrolet G30 (1991–1996); Chevrolet K2500 (1991–1995); Chevrolet K2500 Suburban (1992, 1994–1995); Chevrolet K3500 (1991–1995); and 15 more.