Cometic C4359-051 MLS Cylinder Head Gasket for BMC B Series 74mm Bore

The Cometic C4359-051 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered for BMC 1500, 1600, and 1600 Mark II B-Series engines. Designed to provide maximum sealing performance for high output engines and require no sealants, this gasket is ideal for classic British vehicle restoration and performance builds.

Construction and Materials:

• Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating
• Three-layer MLS construction provides superior strength and rebound characteristics
• Viton flouroelastomer rubber coating is heat resistant to 250°C / 482°F
• Compressed operating thickness of 0.051 inches
• 74mm bore diameter with valve pockets

Performance Benefits:

• Ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks, withstanding the shearing force created by the two materials
• Increased strength from multiple layers of stainless steel creates the ability to rebound and resist corrosion
• Requires less clamp load and creates less bore distortion
• No sealants required for installation

All Cometic products are made in the United States with materials manufactured on American soil, ensuring consistent quality and performance for your classic British engine rebuild.