SCE Gaskets P391580R Pro Copper Head Gasket Bore Thick Small Block Ford - 4.155 0.080

The SCE Gaskets P391580R is a premium Pro Copper cylinder head gasket engineered specifically for high-performance Small Block Ford engines with Yates/Boss heads. This gasket features a 4.155-inch bore diameter and 0.080-inch compression thickness, making it ideal for custom builds and racing applications requiring precise combustion sealing.

Key Features:

• 100% solid copper construction for superior thermal conductivity and heat dissipation
• 4.155-inch bore diameter accommodates stroker and overbored applications
• 0.080-inch compressed thickness allows fine-tuning of compression ratios
• Designed for passenger side (right-hand) cylinder head on Yates and Boss 9 head configurations
• Pro Copper design provides excellent resistance to combustion pressure and thermal cycling
• Reusable when properly annealed between installations

This gasket is specifically configured for Ford SVO-based engines and Boss/Yates cylinder heads, offering race-proven reliability for enthusiasts pushing their Small Block Ford to maximum performance. Sold individually for passenger side installation.