Manley NexTek® Roller Valve Springs
Specially processed premium-grade materials. State of the art winding and thermal treatment. Virtually free of impurities or surface irregularities. Better valve train stability and component life. Set of 16.
Part Type: Roller Valve Springs
Damper Included: No
Outer Spring Outside Diameter (O.D.): 1.640"
Outer Spring Inside Diameter (I.D.): .860”
Inner Spring Outside Diameter (O.D.): NA
Inner Spring Inside Diameter (I.D.): NA
Seat Pressure: 250 @ 2.000"
Open Pressure: 800 @ 1.150"
Valve Spring Rate: 647
Maximum Suggested Lift: .880"
Coil Bind: 1.070"
Electro Polished: No
Suggested Steel Retainers: NA
Suggested Titanium Retainers: 3503
Suggested Seat Cups: NA
Suggested Locators: NA
Manufacturer's Part Number: 221424-16
Packaged Weight: 5.9 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold in Sets of 16