Supertech 12.70mm Max Lift Dual Valve Spring Kit | Multiple BMW Fitments (SPRK-H1000D-BM)

Supertech
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BMW M50/S50/S52/M52/M54 Dual Valve Spring Kit - Set of 24 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: 80lbs@35.70mm
  • Open Pressure: 195lbs@10mm
  • Max Lift: 12.70mm
  • Coil Bind: 20.70mm
  • InnSpr.OD: 20.50mm
  • InnSpr.ID: 15.50mm
  • Rate: 11.50lbs/mm
  • Kit spring: SPR-H1000D
  • Retainer: RET-AUVE/T1
  • Seat Locator: SEAT-BM60
  • OutSpr.OD: 29.65mm
  • OutSpr.ID: 21.85mm

Benefits

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

Please Note: Use Factory Valve Stem Seal

Applications

  • 1991-1995 BMW 318i
  • 1991-1995 BMW 318is
  • 1995 BMW 318ti
  • 2000 BMW 323Ci
  • 1998-2000 BMW 323i
  • 1998-1999 BMW 323is
  • 2001-2006 BMW 325Ci
  • 1992-1995,2001-2005 BMW 325i
  • 1992-1995 BMW 325is
  • 2001-2005 BMW 325xi
  • 2000 BMW 328Ci
  • 1996-2000 BMW 328i
  • 1996-1999 BMW 328is
  • 2001-2006 BMW 330Ci
  • 2001-2005 BMW 330i
  • 2001-2005 BMW 330xi
  • 1991-2005 BMW 525i
  • 1993 BMW 525iT
  • 1997-2000 BMW 528i
  • 2001-2005 BMW 530i
  • 1995-1999 BMW M3
  • 2004-2006 BMW X3
  • 2001-2006 BMW X5
  • 1997-2002 BMW Z3
  • 2003-2005 BMW Z4

What's In The Box?

  • 24 - Springs
  • 24 - Retainers
  • 24 - 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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