Howards Cams Pro-Alloy Mechanical Roller Valve Springs
Howards Cams™ Pro-Alloy material is specially developed low stress, high endurance material. Howards Cams research and development staff spent many years of development, experience and testing to create a spring you can count on. Low fatigue rate compared to most roller springs on the market. Cycle tested to 12 million cycles with no breakage. Each spring is coiled using the most advanced CNC winders in the industry. Each spring 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 longer spring life, even in rough racing environments. Sets of 16.
Part Type: Valve Springs
Style: Howards Cams & Racing Components Performance Valve Springs
Damper Included: No
Outer Spring Outside Diameter (O.D.): 1.660"
Outer Spring Inside Diameter (I.D.): 1.215"
Middle Spring Outside Diameter: (O.D.): 1.190"
Middle Spring Inside Diameter (I.D.): .875"
Inner Spring Outside Diameter (O.D.): .875"
Inner Spring Inside Diameter (I.D.): .635"
Seat Pressure: 350 @ 2.200"
Open Pressure: 1075 @ 1.200"
Valve Spring Rate: 725
Maximum Suggested Lift: .995"
Coil Bind: 1.145"
Electro Polished: No
Suggested Steel Retainers: NA
Suggested Titanium Retainers: 97224
Suggested Seat Cups: NA
Suggested Locators: NA
Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: 98049
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold in Sets of 16