Manley Ford 351C 1.710 Inch Head Diameter / .3415 Inch Stem / Diameter Stock Height ( Set of 8) - 11805-8

Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

Manley Ford 351C 2.190 Inch Head Diameter / .341 Inch Stem / 5.244 Inch Length ( Set of 8) - 11800-8

Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

Manley Ford 351C 2.190in Diameter 5.244in Length SS Race Master Exhaust Valves (Set of 8) - 11872-8

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity...

Manley Ford 351C 5.167 O/A Length 1.710 Dia Dish Severe Duty Exhaust Valves (Set of 8) - 11857-8

Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust...

Manley Ford 4.6L & 5.4L SOHC 44.5mm Race Master Intake Valve (Single) - 11636-1

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity...

Manley Ford 4.6L & 5.4L SOHC 44.5mm Race Master Intake Valves *Set of 8* - 11636-8

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity...

Manley Ford 4.6L & 5.4L SOHC 45.5mm Race Master Intake Valves *Set of 8* - 11640B-8

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity...

Manley Ford 4.6L 31mm Diameter 4.587in O/A Length Bead Lock Race Master Exhaust Valves (Set of 8) - 11617B-8

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity...

Manley Ford 4.6L 34mm Diameter 117.35mm Length Race Master Exhaust Valves (Set of 8) - 11630-8

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity...

Manley Ford 4.6L 35mm Race Master Exhaust Valve - 11632-1

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity...

Manley Ford 4.6L 35mm Race Master Exhaust Valves *Set of 8* - 11632-8

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity...

Manley Ford 4.6L 37.5mm Diameter 117.35mm Length Race Master Exhaust Valves (Set of 8) - 11631-8

Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material...