Out of stock
SKU: FERF2039P-8
MPN: F2039P-8
The SBC C/P HS 1.500 Exhaust Valves 4.910 OAL (part number F2039P-8) are competition-grade valve components engineered for high-performance small-block engine builds. This set of eight stainless steel exhaust valves delivers the precision geometry and material quality required in racing and advanced automotive applications where valve reliability directly impacts engine performance and durability.
Each valve features a 1.500-inch head diameter paired with an 11/32-inch valve stem, measuring 4.910 inches in overall length. These specifications are calibrated for optimal flow characteristics and seating pressure in small-block engine heads designed to accept Competition Plus valve geometry. The stainless steel construction resists thermal stress and oxidation under sustained high-RPM operation, a critical factor in racing engines where exhaust valve temperatures regularly exceed 1,300°F. The eight-valve set accommodates complete exhaust valve replacement across multiple cylinders or allows for staged refreshes in engine builds subject to frequent modifications.
These valves are suited for engine builders and racing enthusiasts working on small-block platforms that specify Competition Plus exhaust valve dimensions. Applications include circle track racing, drag racing engine builds, marine high-performance conversions, and street-performance small-block projects where OEM valve specifications fall short of competitive demands. The precision valve geometry directly influences scavenging efficiency and combustion dynamics, making proper specification essential for horsepower development and sustained engine reliability.
Competition Plus valves occupy a middle-tier position in the small-block performance valve market, offering significant upgrades over factory components while remaining accessible for builders who do not require exotic materials like inconel or titanium. Stainless steel provides a proven balance of thermal resistance, cost efficiency, and longevity across a wide range of engine operating conditions. Proper valve seat preparation and head machine work are essential when installing new valves to ensure correct seating pressure and optimal engine performance.
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