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Howards Performance Hydraulic Roller/Mechanical Flat Tappet Valve Springs
Coiled and heat-treated in the finest facilities available. Manufactured aircraft chrome silicone material. Howards research and development teams are constantly updating materials and manufacturing techniques to provide the best possible valve springs. Each spring is coiled, stress relieved, deburred, and shot-peened to our own very specific standards. Howards Cams pioneered many valve spring developments since the 1950’s and are still working with the best engineers and race teams to be on the cutting edge of valve spring technology. Sets of 16.
Part Type: Hydraulic Roller/Mechanical Flat Tappet Valve Springs
Style: Performance Street/Strip
Type: Dual
Damper Included: Yes
Outer Spring Out Side Diameter (O.D.): 1. 437"
Outer Spring In Side Diameter (I.D.): 1.080"
Inner Spring Out Side Diameter (O.D.): 1.080"
Inner Spring In Side Diameter (I.D.): .810"
Seat Pressure: 145 @ 1.750"
Open Pressure: 315 @ 1.150"
Valve Spring Rate: 283
Maximum Suggested Lift: .665"
Coil Bind: 1.025"
Electro Polished: No
Nitrided: No
Suggested Steel Retainers: 97118, 97128
Suggested Titanium Retainers: 97216
Suggested Seat Cups: 96005
Suggested Locators: 96035
Manufacturer: Howards Cams
Manufacturer's Part Number: 98442
Packaged Weight: 3.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold in Sets of 16
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