Supertech 12.70mm Max Lift Dual Valve Spring Kit | Multiple BMW Fitments (SPRK-H1000D-BM-ST)
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-HBK-ST
- 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
Applications
- 1990-2005 BMW 520i
- 1991-2006 BMW 320i
- 2000–2002 E36/7 Z3 2.2i
- 1998-2000 E36/7/8 Z3M
- 2003–2005 E85 Z4 2.2i
- 1994-1999 E36 M3
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.
