SuperTech High Performance Valve Spring Kit, BMW M52TU/M54

Supertech valve springs for the BMW M52TU and M54 engines are designed for high-performance enthusiasts who demand reliability at high RPMs. Made from Superclean Chrome Silicon Vanadium Steel alloy, these valve springs offer exceptional durability, improved structural memory, and consistent performance even under extreme conditions.

Precision engineered with computer-aided design, Supertech valve springs are optimized to minimize stress and manage harmonics effectively, providing your engine with the resilience needed for competitive racing environments. Paired with military-certified titanium alloy retainers, CNC-machined for the perfect fit, Supertech’s valve springs deliver industry-leading quality.

Installation requires the expertise of an engine builder.

Seat Pressure Options:

80 lbs

• 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
• Kit spring qty: 24
• Retainer: RET-AUVE/T1
• Retainer qty: 24
• Seat Locator: SEAT-BM60
• OutSpr.OD: 29.65mm
• OutSpr.ID: 21.85mm
• Seat Locator qty: 24

94  lbs

• Seat Pressure: 94lbs@35.70mm
• Open Pressure: 209lbs@10mm
• Max Lift: 12.50mm
• Coil Bind: 20.70mm
• InnSpr.OD: 20.50mm
• InnSpr.ID: 15.50mm
• Rate: 11.50lbs/mm
• Kit spring: SPR-H1005D
• Kit spring qty: 24
• Retainer: RET-AUVE/T1
• Retainer qty: 24
• Seat Locator: SEAT-BM60
• OutSpr.OD: 29.65mm
• OutSpr.ID: 21.85mm
• Seat Locator qty: 24

BMW M52TU Applications:

BMW 3 Series

1998-2000     E46     320i / 320Ci
1998-2000     E46     323i / 323Ci
1998-2000     E46     328i / 328Ci

BMW 5 Series

1998-2000     E39     523i
1998-2000     E39     528i

BMW Z3 Series

1998-2000     Z3     2.0i / 2.8i

BMW M54 Applications:

BMW 3 Series

2000-2006     E46     320i / 320Ci
2000-2006     E46     325i / 325xi / 325Ci
2000-2006     E46     330i / 330xi / 330Ci

BMW 5 Series

2000-2003     E39     520i [Europe]
2000-2003     E39     525i 
2000-2003     E39     530i

2003-2005     E60/E61     525i
2003-2005     E60/E61     530i

BMW 7 Series

2001     E38     730i / 730Li [Europe]

BMW Z3 Series

2000-2002     Z3     2.2i / 2.5i / 3.0i

BMW Z4 Series

2002-2005     Z4     2.5i / 3.0i

BMW X3 Series

2003-2006     E83     X3 2.5i / 3.0i

BMW X5 Series

2000-2006     E53     X5 3.0i