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COMP Cams Part # CCA7256-1

Comp Cams Conical Valvespring, 1.390In 485Lb R - 7256-1

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Race Sportsman 1.390" OD Conical Spring, 1.900" Installed Height, 1 Spring

1.060/1.390" OD Conical Spring

Expected to become the new standard in high performance valve spring design, COMP Cams Conical and Dual Conical Valve Springs utilize round wire and feature a diameter-driven and progressive- pitch-driven natural frequency. This design increases the valve train RPM limit while reducing resonance concerns and decreasing dynamic spring oscillations. The result is longer spring life and the ability to run more aggressive camshafts. A breakthrough in valve spring development, COMP Cams is the very first to market with this advanced conical design.

  • Superfinish surface processing increases both lift capability and spring longevity without increasing wire size
  • The best natural frequency damping setup dampens without wear, heat/friction or risk from interference contact
  • Designed for circle track, road race and drag racing applications, as well as all-out, high-RPM street/strip hydraulic roller valve train systems with optimized lifters

  • Outer Top Spring Inside Diameter: 0.66 in.
  • Outer Bottom Spring Inside Diameter: 0.99 in.
  • Number of Springs: 1
  • Outer Top Spring Outside Diameter: 1.06 in.
  • Coil Bind Height: 1.16 in.
  • Outer Bottom Spring Outside Diameter: 1.39 in.
  • Seat Height: 1.9 in.
  • Seat Pressure: 160 lb
  • Compatible .570" Guide Diameter Spring Seat: 4670-1
  • Compatible Shims: 4754
  • Spring Rate: 486 lb/in
  • Compatible Retainer: 788-1
  • Inside Diameter: 0.990 in.

Free U.S. standard shipping on qualifying orders $199+. Special order and made-to-order items can't be cancelled or refunded once ordered.

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