Supertech Single Valve Spring and Retainer Kit (Evo 4G63)

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SKU: sptSPRK-M1007S

Price:
$ 339.73 $ 424.66

Description

Valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms and better memory. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control.

Single Valve Spring Specs:
  • - Outer Spring O.D.: 28.10mm
  • - Outer Spring I.D.: 20.00mm
  • - Seat Pressure: 76 @ 39.6
  • - Open (lift) Pressure: 200 @ 11.5
  • - Max Lift: 14.90mm
  • - Coil Bind: 24.70mm
  • - Rate: 10.50 lbs/mm

The Retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.

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