Supertech 13.90mm Max Lift Dual Valve Spring Kit - Requires Smaller Seal | 2005-2007 Chevrolet Cobalt SS Supercharged Coupe (SPRK-EC3027D)

Supertech
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2005-2007 Chevrolet Cobalt SS Dual Valve Spring Kit by Supertech

Supertech Spring / Retainer kits are precision matched sets for a complete valvetrain overhaul. Developed for the performance enthusiast that wants the best the industry has to offer, Supertech Spring / Retainer kits are second to none in terms of performance, quality and value.

Features

  • Seat Pressure: 94 @ 34.60
  • Open Pressure: 232 @ 12.5
  • Max Lift: 13.90mm
  • Coil Bind: 20.70mm
  • Rate: 11.1
  • Kit spring: SPR-EC3027D
  • Retainer: RET-EC3020/T1
  • InnSpr.ID: 14.20mm
  • InnSpr.OD: 19.60mm
  • OutSpr.OD: 26.60mm
  • OutSpr.ID: 19.60mm
  • Seat Locator: SEAT-EC3020

Benefits

  • Underwent a gas nitriding process before shot peening for improved fatigue life

Applications

  • 2005-2007 Chevrolet Cobalt SS Supercharged Coupe

What's In The Box?

  • 16 - Springs
  • 16 - Retainers
  • Seat Locators

Warranty

  • Due to the nature of the application, these parts are sold without any express warranty or any implied warranty of merchantability, or fitness for a particular purpose.

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