Howards Performance Mechanical Flat Tappet Valve Springs
Manufactured of aircraft chrome silicone material. 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. Howards research and development engineers are constantly updating materials and manufacturing techniques, to provide the best possible valve springs. Sets of 16.
Part Type: Mechanical Flat Tappet Valve Springs
Style: Performance Street/Strip
Type: Dual with Damper
Damper Included: Yes
Outer Spring Out Side Diameter (O.D.): 1.435"
Outer Spring In Side Diameter (I.D.): 1.035"
Inner Spring Out Side Diameter (O.D.): .937"
Inner Spring In Side Diameter (I.D.): .697"
Seat Pressure: 135 @ 1.680"
Open Pressure: 390 @ 1.190"
Valve Spring Rate: 455
Maximum Suggested Lift: .575"
Coil Bind: 1.055"
Electro Polished: No
Nitrided: No
Suggested Steel Retainers: 97118, 97128
Suggested Titanium Retainers: 97216
Suggested Seat Cups: 96015
Suggested Locators: 96024
Manufacturer: Howards Cams
Manufacturer's Part Number: 98437
Packaged Weight: 3.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold in Sets of 16 |