Ford Performance 4.125″ Big Bore 351 Head Gasket Set with Valve Pockets M-6051-B341

Description

If you’re building a 351 Ford Performance engine with a 4.125-inch overbore, combustion efficiency depends on precision sealing and optimized airflow—and this head gasket set delivers both. The bore flange valve pockets unshroud your intake and exhaust valves, allowing more air and fuel to flow into the combustion chamber while reducing restrictions on the exhaust side. Steel core laminate construction ensures this gasket set can handle the pressures of high-performance applications without compromise.

This is a matched pair of right- and left-hand gaskets engineered specifically for your overbored block, eliminating guesswork during assembly and guaranteeing a reliable seal from first startup through race season.

• Bore Diameter: 4.125 inches
• Gasket Diameter: 4.160 inches
• Compressed Thickness: 0.040 inches
• Compressed Volume: 9.1 cc
• Material: Steel core laminate
• Fitment: 351 Ford Performance blocks
• Configuration: Matched pair
• Installation: Requires engine disassembly
• MPN: M-6051-B341