Complete Manley Ford 351c 2.190 Inch Head Diameter / .341 Inch Stem / 5.244 Inch Length ( Set Of 8) Bundle [damw6HC7]

Superior Manley Exhaust Valves

Discover the ultimate in engine performance with the Manley Ford 351C Exhaust Valves. Engineered for high-temperature gasoline engines, these valves are designed to withstand the harshest conditions. The set of 8 valves features a 2.190-inch head diameter, a .341-inch stem, and a 5.244-inch length, ensuring a perfect fit for your Ford 351C engine. With their exceptional durability and longevity, these valves are a must-have for any performance enthusiast.

Proven Fatigue Resistance

Manley's severe-duty valves have undergone rigorous fatigue tests, far exceeding industry standards. While standard valves can only withstand 20,000 to 25,000 lbs of applied stress, Manley's valves can handle up to 40,000 to 60,000 lbs when valves bounce on the seat. Tested at 40,000 psi and 1400°F, these valves have impressively endured up to 100,000,000 cycles, which is 1000 times better than competitors' offerings. This ensures that your engine will perform reliably, even under extreme conditions.

Optimized Performance and Materials

The Manley Ford 351C Exhaust Valves are crafted with precision and designed for optimal performance. Chrome stems and hard tips provide enhanced durability and longevity, while the swirl polished under head areas and fully machined combustion faces optimize airflow and combustion efficiency. The XH-428 material for exhaust valves offers nearly double the ultimate tensile strength at 1500°F compared to the competition's EV-8, while the NK-844 material for intake valves displays over four times the ultimate tensile strength of the competition's best intake valve material at 1000°F. This combination of high-quality materials and innovative design makes these valves the ideal choice for any performance engine.