Cometic C4983-040 MLS Cylinder Head Gasket Bore Mazda BP Engine - 84mm 040

The Cometic C4983-040 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Mazda BP-4W Turbo and BP-Z3 engines. This precision-manufactured gasket features an 84mm bore diameter and .040" (1.0mm) compressed thickness, making it ideal for turbocharged and high-performance applications where reliability under extreme conditions is critical.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 84mm bore diameter optimized for Mazda BP engine family
• .040" compressed thickness for precise compression ratio tuning
• Designed for BP-4W Turbo and BP-Z3 engine variants
• Exceeds OEM specifications for high-boost and high-compression builds
• Embossed stainless steel layers with advanced coating technology
• Resists combustion pressure leaks and maintains seal integrity under thermal cycling

Cometic's MLS gaskets are the gold standard in performance engine sealing, featuring multiple layers of stainless steel with specialized coatings that allow for superior rebound characteristics and combustion sealing. This gasket is perfect for engine builders looking to increase boost levels, compression ratios, or simply ensure maximum reliability in modified Mazda BP powerplants found in Miata, Protege, and other applications.