Manley Performance

Manley Gen II Race Master Series 38.5mm Custom SS Exhaust Valves (Set of 4)

Manley Gen II Race Master Series 38.5mm Custom SS Exhaust Valves (Single)

Manley Gen II Race Master Series 48.5mm Custom SS Intake Valves (Set of 4)

Manley Gen II Race Series 35.0mm Custom SS Intake Valve (SINGLE VALVE)

Manley Gen II Race Series 37mm Head Dia 121.9mm Length Race Series Exhaust Valves - Set of 8

Manley Gen II Race Series 48mm Head Dia 137.9mm Length Race Series Intake Valve (SINGLE VALVE)

Manley Gen II Race Series 48mm Head Dia 137.9mm Length Race Series Intake Valves - Set of 8

Manley Gen II Race Series 55.9mm Head Dia 142.2mm Length Severe Duty Intake Valve (SINGLE VALVE)

Manley Gen II Race Series 58.4mm Custom SS Intake Valve - Single

Experience the pinnacle of connecting rod technology with our Pro Series rods, designed for ultimate performance.Superior Materials: These rods are available in two exceptional materials: forged 4340...

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:...

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...

Manley GM LS Series .660in Max Lift Valve Spring and Retainer Kit

Manley GM LS Series .660in Max Lift Valve Spring and Retainer Kit

Manley GM LS Series Super Finished H.P. Valve Springs .650 Max Lift (16 Pieces)