BMW S54 Race Valve Spring Kit

5150 AutoSport Pro-Xtreme Valve Springs for BMW S54 Engines

5150 AutoSport Pro-Xtreme Valve Springs, designed specifically for BMW S54 engines. Whether you're building a high-performance street car, road race setup, or turbocharged application, these valve springs are engineered to deliver stable and reliable valve control up to 8500 RPM.

Available as a complete kit including valve springs, seats, and steel retainers, or as springs only, allowing flexibility based on your engine setup and performance goals.

Designed for High RPM Stability & Reliability

These valve springs have been thoroughly tested and proven in our own high-performance S54 stroker engines producing 483 HP while enduring heavy abuse in demanding road race conditions where the engine spends extended periods at high RPM. They have also been successfully tested in high-horsepower turbocharged applications.

Built for aggressive camshafts, stroker combinations, and forced induction setups, the 5150 AutoSport Pro-Xtreme Valve Springs provide consistent valve control and help prevent valve float in extreme operating conditions.

Precision-Engineered for Performance Builds

Designed to handle the demands of:

• Road racing
• High-performance naturally aspirated builds
• Turbocharged applications
• High RPM endurance use

These springs are built for serious enthusiasts and racers looking for reliability under extreme conditions.

Note: Professional installation by an experienced engine builder is strongly recommended.

Key Features:

• Available for 6mm valve setups
• Designed for reliable operation up to 8500 RPM
• Tested and proven in 483 HP S54 stroker road race engines
• Successfully tested in high-horsepower turbocharged applications
• Built for aggressive camshafts and high-performance applications
• Engineered specifically for BMW S54 engines

BMW S54 Applications:

BMW 3 Series

2000-2006     E46     M3

BMW Z3 Series

2001-2002     Z3     M

BMW Z4 Series

2006-2008     Z4     M