Cometic C4564-140 MLS Cylinder Head Gasket Bore Honda - 81.5mm B20A3/B20A5

The Cometic C4564-140 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for Honda B20A3 and B20A5 engines. This high-performance gasket features an 81.5mm bore diameter and a compressed thickness of .140 inches (3.56mm), making it ideal for both stock rebuilds and performance applications.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme cylinder pressures
• 81.5mm bore diameter precisely matches Honda B20A3/B20A5 engine specifications
• .140" compressed thickness allows for precise compression ratio tuning
• Advanced gasket coating ensures optimal sealing between head and block surfaces
• Designed to withstand high temperatures and pressures in performance and forced induction applications
• Eliminates gasket failure and combustion leaks common with composite gaskets

Cometic MLS gaskets feature multiple layers of stainless steel with proprietary coatings that accommodate surface imperfections and maintain seal integrity through thermal cycling. This gasket is engineered to provide reliable sealing for street, strip, and forced induction Honda B-series applications.