Cometic C8153 71mm Bore .043" Copper Head Gasket 1045cc

The Cometic C8153 is a precision-engineered solid copper head gasket designed for high-performance applications requiring exceptional sealing under extreme cylinder pressures. Featuring a 71mm bore diameter and .043" thickness, this gasket is specifically sized for 1045cc engine builds.

Key Features:

• 71mm bore diameter for precise fitment
• .043" (1.09mm) gasket thickness for optimal compression ratio tuning
• Solid copper construction for superior thermal conductivity and conformability
• Designed for 1045cc displacement engines
• Ideal for high-boost turbo, supercharged, and high-compression naturally aspirated applications
• Requires smooth, flat deck surfaces for proper sealing (recommended RA finish of 50 or better)
• Compatible with O-ring block or head modifications for maximum sealing capability

Cometic copper gaskets are selected for their resistance to corrosion and excellent yielding strength, making them the preferred choice for extreme high-performance and racing engines. Copper's natural conformability allows the gasket to seal irregular surfaces while maintaining durability under demanding conditions. This gasket is engineered for builders seeking precise deck height adjustment and reliable sealing in modified powersports and performance applications.