Supertech High Performance Valve & Spring Kit – BMW/Toyota B58
Upgrade your BMW/Toyota B58 cylinder head with a Supertech High Performance Valve & Spring Kit, designed for high-performance, high-RPM, and high-boost applications where increased valve-train stability and durability are critical.
Supertech offers multiple spring and valve configurations, allowing the kit to be tailored to your specific engine build, power level, RPM range, and cylinder head requirements.
Choose between:
75 lb Valve Springs – Excellent for high-performance street and moderate competition applications.
84 lb Valve Springs – Increased spring pressure for more aggressive, high-RPM and high-performance applications.
Supertech valves are available in multiple configurations:
Standard Size Valves
+1mm Oversized Valves – Increased valve diameter for applications utilizing a properly prepared cylinder head.
Single Groove Valves
Triple Groove Valves
These options allow the valvetrain to be configured specifically for your intended application and cylinder head setup.
Supertech high-performance valve springs
Choice of 75 lb or 84 lb spring pressure
Choice of standard or +1mm oversized valves
Choice of single or triple groove valve configuration
Improved valve control at elevated engine speeds
Increased valvetrain stability for high-performance applications
Ideal for high-boost, high-RPM, and competition-oriented B58 builds
Precision-manufactured Supertech components
Available as a complete configurable valvetrain package
BMW B58 engines
Toyota B58 applications
High-performance street, track, drag, and competition builds
Part Number: SUP-HPVK-B58
Important: Valve, spring, and groove configurations should be selected based on the specific cylinder head, camshaft, RPM range, and intended engine application. Proper installed height, spring pressure, retainer compatibility, and valve-to-piston clearance must be verified during assembly.
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