Howards Cams 98511-K31 Valve Spring and Retainer Kit

Howards Cams designed this 98511-K31 Valve Spring and Retainer Kit for hydraulic flat tappet cams. This kit includes valve springs, chromoly retainers as well as alloy steel locks.

With a .590" maximum lift, the springs work great for high performance street in addition to drag strip applications.

Choosing the correct valve spring allows your engine to reach its full potential in addition to minimizing wear and tear on your valvetrain.

Howards research and development engineers constantly update materials as well as manufacturing techniques to provide the best possible valve springs. These springs are coiled as well as heat-treated in the finest facilities available. Each spring is coiled, stress relieved, deburred, shot-peened as well as heat treated for years of high-performance service.

Howards Cams 98511-K31 Valve Spring and Retainer Kit Specs:

• Kit includes 98511 Valve Springs, 97110 Steel Retainers, as well as 93015 Valve Locks
• Number of Springs Per Valve: Single
• Valve Spring Style: Standard
• Maximum Valve Lift: 0.590 in.
• Coil Bind Height: 1.150 in.
• Outside Diameter of Outer Spring: 1.485 in.
• Inner Diameter of Outer Spring: 1.061 in.
• Spring Rate: 355 lbs./in.
• Closed Pressure: 115 lbs. @ 1.800
• Open Pressure: 310 lbs. @ 1.250
• Damper Spring Included: Yes
• Retainers Included: Yes
• Retainer Material: Chromoly Steel
• Valve Springs Coated: No
• Valve Stem Seals Included: No
• Valve Stem Diameter: 0.344 in.
• Locks Included: Yes
• Lock Material: Alloy Steel
• Lock Groove Quantity: 1-groove
• Lock Style: 7 degree

Howards Cams Valve Spring Kits – The Ultimate In Performance!