Manley Performance Valves, Intake, Stainless Steel, 2.190 In. Diameter, .341 In. Stem

The Severe Duty® series of valves is the Manley signature in the performance and racing industry. Exhaust material XH-428 and intake material NK-844 is offered by no competitor in the world. And no pair of materials show such clear dominance over all others. Ultimate tensile strength of XH-428 at 1500 Degree Fahrenheit is nearly double the competitors’ EV-8. At 1000 Degree Fahrenheit the Manley NK-844 displays more than four times the ultimate tensile of the competition’s best intake material.

• Engine Compatibility: Ford Big Block V8 429-460 Cubic Inch
• Head Diameter (IN): 2.190 Inch
• Stem Diameter (IN): 0.3415 Inch
• Installed Height (IN): Stock
• Finish: Polished
• Color: Silver
• Material: Stainless Steel
• Quantity: Set Of 8

Features

• XH-428 Stainless Exhaust Material
• NK-844 Stainless Intake Material
• Chrome Stems And Hard Tips
• Swirl Polished And Fully Machined