BMW M52TU / M54 Valve Spring Kit by Ferrea

Upgrade your BMW M52TU / M54 engine with Ferrea high-performance valve springs, engineered to address three critical challenges that can severely impact engine performance: binding, breakage, and valve float.

Key Benefits of Ferrea Valve Springs:

• Combat Binding: Ferrea valve springs ensure valves open and close smoothly, preventing the risk of binding that can lead to significant engine damage.
• Prevent Breakage: With superior durability, these valve springs minimize the chance of breakage, avoiding the catastrophic failure associated with valves dropping into the combustion chamber.
• Eliminate Valve Float: Designed with optimal spring rates, Ferrea valve springs eliminate valve float, allowing for enhanced power output and preventing combustion leaks at high RPMs.

Exceptional Engineering for High-Performance Applications

Ferrea valve springs are meticulously heat-treated and stress-relieved, delivering unmatched stability for high-lift and high-RPM applications. Each spring is crafted from high-strength chromoly steel, providing increased spring pressure that enhances engine response and power at elevated speeds.

Precision CNC-Machined Retainers

To complement the valve springs, Ferrea offers precision CNC-machined retainers that provide superior strength and stability, essential for withstanding the demands of rigorous racing environments.

Robust Spring Seat Locators

Ferrea Spring Seat Locators are constructed from durable 4140 chromoly alloy, featuring precise tolerances and a flat, parallel spring pad. Their hard nitrided surface treatment enhances toughness and wear resistance, making them a perfect addition to your high-performance setup.

Why Upgrade to Ferrea Valve Springs?

For serious racing enthusiasts, upgrading to Ferrea high-performance valve springs is crucial. Stock valve springs often struggle under the pressure of increased lift and RPMs, leading to valve float and decreased power output. Ferrea’s valve springs guarantee optimal valve operation, maximizing engine power and significantly reducing the risk of engine failure.

Installation requires the expertise of an engine builder.

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