Supertech Valve Spring and Retainer Kit DUAL SPRING 70LB Ford/Mazda Duratec 2.0L/2.3L inc. Mazdaspeed 3 2007-2013 / Mazdaspeed 6 2006-2007

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  • Regular price $469.99
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-Supertech 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 arewell under control.
-The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.

  • Type: Dual Spring
  • Press.Seat: 70 @ 36.2
  • Max Lift: 13mm
  • Coil Bind: 20.7mm
  • Rate: 12.10mm
  • Retainer: RET-TS5.5/T1
  • Spring: SPR-TS-DUR-D2
  • Seat Locator: SEAT-DUR2 + OEM Seat locator