Valve Spring Kit

Build your BMW N54 Turbo stronger with Supertech valve spring kit. Key specs: Spring type: Conical Valve Spring, Seat pressure: 75lbs @ 36.50mm, Open pressure: 155lbs @ 10.00mm, Spring rate: 7.8lbs/mm, Max lift: 12mm, and Safe RPM: 8000. Each kit is matched as a complete valvetrain package — springs, retainers, locators and locks — so installation is straightforward and clearance issues are eliminated. Built to control valve motion at high RPM, reduce valve float and support aggressive cam profiles. Compatible with most aftermarket and OEM camshafts within the rated lift range. Installation requires verifying installed spring height with the included shims and confirming retainer-to-seal clearance. Recommended for any build running aggressive cams, increased RPM ceilings, or forced induction. Order direct from Supertech for fast shipping and expert technical support.

Specs

• Retainer Qty: 12 ; 12
• Kit Spring: spr-fe20be
• Kit Spring Qty: 24
• Safe Rpm Limit: 8000
• Retainer: Steel
• Rate: 7.8lbs/mm
• Outer Spring Od: 24.40mm
• Outer Spring Id: 17.60mm
• Inner Spring Od: 21mm
• Inner Spring Id: 14.20mm
• Seat Pressure: 75lbs @ 36.50mm
• Open Pressure: 155lbs @ 10.00mm
• Max Lift: 12mm
• Coil Bind: 23.20mm

Engines

• BMW N53
• BMW N54
• BMW N55
• BMW S55

Manufacturer: SuperTech

SKU: ST-SPRK-FE20N54-BE

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