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

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.