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Howards Cams Electro Polished Max Effort™ Mechanical Roller Valve Springs
Manufactured of aircraft-grade chrome silicone with advanced heat-treating. Outers then receive an advanced electro polished finish. This enhanced finish increases valve spring life and fatigue resistance for lap after lap consistency. Each spring is coiled using the most advanced CNC winders in the industry. Each one is then parallel ground, stress relieved and deburred. They are then shot-peened and heat-treated to our own very specific standards. These high standards are what it takes for a longer spring life, even in rough racing environments. Designed for mechanical applications. Sets of 16.
Part Type: Max Effort™ Roller Valve Springs
Style: Competition Racing Valve Springs
Type: Dual with Damper
Damper Included: Yes
Outer Spring Out Side Diameter (O.D.): 1.539"
Outer Spring In Side Diameter (I.D.): 1.125"
Inner Spring Out Side Diameter (O.D.): 1.015"
Inner Spring In Side Diameter (I.D.): .731"
Seat Pressure: 194 @ 1.920"
Open Pressure: 505 @ 1.200"
Valve Spring Rate: 430
Maximum Suggested Lift: .720"
Coil Bind: 1.150"
Electro Polished: Yes
Nitrided: No
Suggested Steel Retainers: 97118, 97128
Suggested Titanium Retainers: 97220
Suggested Seat Cups: 96015
Suggested Locators: 96031
Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: 98650
Packaged Weight: 3.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold in Sets of 16
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