Howards Performance Hydraulic Flat Tappet Valve Springs Howards research and development engineers are constantly updating materials and manufacturing techniques to provide the best possible valve springs. Coiled and heat-treated in the finest facilities available. Each spring is coiled, stress relieved, deburred, shot-peened and heat treated to our own very specific standards. Sets of 16.
Part Type: Hydraulic Flat Tappet Valve Springs Style: Performance Flat Tappet Type: Single with Damper Damper Included: Yes Outer Spring Out Side Diameter (O.D.): 1.525" Outer Spring In Side Diameter (I.D.): 1.075" Inner Spring Out Side Diameter (O.D.): NA Inner Spring In Side Diameter (I.D.): NA Seat Pressure: 125 @ 1.875" Open Pressure: 350 @ 1.375" Valve Spring Rate: 462 Maximum Suggested Lift: .600" Coil Bind: 1.200" Electro Polished: No Nitrided: No Suggested Steel Retainers: 97110, 97128 Suggested Titanium Retainers: 97216 Suggested Seat Cups: NA Suggested Locators: NA Manufacturer: Howards Cams Manufacturer's Part Number: 98529 Packaged Weight: 3.0 lbs. Warranty: Race Application, No warranty expressed or implied Quantity: Sold in Sets of 16
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