Ford 2.3L R/M 1.590in Exhaust Valve

The Manley Ford 2.3L R/M 1.590in Exhaust Valve is a precision-engineered race-grade component purpose-built for high-performance 2.3-liter Ford engine builds. Measuring 1.590 inches at the head with a 0.342-inch valve stem and 4.800-inch overall length, this stainless steel exhaust valve delivers the dimensional consistency and material quality demanded by serious engine builders and performance enthusiasts running Esslinger heads with flat-tappet cam profiles.

Manufactured from stainless steel, this exhaust valve resists thermal cycling stress and corrosion inherent in high-RPM operation. The Race Master specification indicates this component meets the exacting standards of competition engine builders who depend on valve geometry and material properties to maintain precise flow characteristics across extended power ranges. The 1.590-inch head diameter and matched stem diameter ensure proper sealing geometry and reduce flow disruption at the valve seat interface—critical for maintaining volumetric efficiency in turbocharged or naturally aspirated applications pushing toward maximum displacement utilization.

This valve is engineered for builders and tuners assembling Ford 2300 engines with Esslinger cylinder heads and flat-tappet lifter systems. Applications include vintage motorsports, endurance racing, and street-performance builds where controlled valve event timing and reliable sealing are non-negotiable. Proper valve selection is fundamental to head flow balance and combustion stability—mismatched or worn valves degrade both power output and reliability. Each Manley valve is individually manufactured to specification and ready for installation.