Cometic C5478-120 MLS Cylinder Head Gasket Ford Windsor Bore Thick - 302/351W 4.030 120

The Cometic C5478-120 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Ford 302 and 351W Windsor V8 engines. This precision-manufactured gasket features a 4.030-inch bore diameter and .120-inch compressed thickness, making it ideal for performance builds requiring enhanced sealing capability.

Key Specifications:

• Bore Size: 4.030 inches
• Compressed Thickness: .120 inches (120 thousandths)
• Multi-Layer Steel (MLS) construction for superior sealing
• Application: Ford 302/351W Windsor V8 engines
• Compatible with SVO cylinder heads

Performance Benefits:

• MLS technology provides exceptional resistance to blowout under high cylinder pressures
• Accommodates thermal expansion and engine movement
• Superior combustion seal compared to traditional composite gaskets
• Ideal for boosted, nitrous, or naturally aspirated high-compression applications
• Allows precise control of compression ratio with various thickness options

Cometic gaskets are manufactured using advanced materials and proprietary processes that ensure consistent quality and reliability. The MLS design features multiple layers of stainless steel with elastomeric coatings that micro-seal surface imperfections while maintaining durability under extreme conditions. This gasket is sold individually; order two for complete V8 cylinder head replacement.