Howards Performance Hyd./Mech. Flat Tappet & Hydraulic Roller 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: Hyd./Mech. Flat Tappet & Hydraulic Roller Valve Springs
Style: Performance Flat Tappet & Roller
Type: Single with Damper
Damper Included: Yes
Outer Spring Out Side Diameter (O.D.): 1.550"
Outer Spring In Side Diameter (I.D.): 1.130"
Inner Spring Out Side Diameter (O.D.): NA
Inner Spring In Side Diameter (I.D.): NA
Seat Pressure: 145 @ 1.880"
Open Pressure: 350 @ 1.250"
Valve Spring Rate: 325
Maximum Suggested Lift: .640"
Coil Bind: 1.200"
Electro Polished: No
Nitrided: No
Suggested Steel Retainers: 97110, 97118, 97128
Suggested Titanium Retainers: 97220
Suggested Seat Cups: NA
Suggested Locators: NA
Manufacturer: Howards Cams
Manufacturer's Part Number: 98611
Packaged Weight: 3.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold in Sets of 16 |