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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. Sets of 16.
Part Type: Hydraulic Roller/Mechanical Flat Tappet Valve Springs
Style: Performance Flat Tappet & Roller
Type: Single with Damper
Damper Included: Yes
Outer Spring Out Side Diameter (O.D.): 1.265"
Outer Spring In Side Diameter (I.D.): .875"
Inner Spring Out Side Diameter (O.D.): NA
Inner Spring In Side Diameter (I.D.): NA
Seat Pressure: 125 @ 1.800"
Open Pressure: 375 @ 1.200"
Valve Spring Rate: 415
Maximum Suggested Lift: .600"
Coil Bind: 1.150"
Electro Polished: No
Nitrided: No
Suggested Steel Retainers: 97112, 97132
Suggested Titanium Retainers: 97214
Suggested Seat Cups: NA
Suggested Locators: NA
Manufacturer: Howards Cams
Manufacturer's Part Number: 98218
Packaged Weight: 3.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold in Sets of 16
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