Supertech Performance SPRK-H1000D-BM-16-ST BMW M54 16V Dual Valve Spring Kit with Steel Retainers

The Supertech Performance SPRK-H1000D-BM-16-ST is a complete dual valve spring kit engineered for BMW M54 16-valve engines. This precision-matched valvetrain upgrade kit is designed for enthusiasts building high-performance naturally aspirated or turbocharged cylinder heads that demand reliability at elevated RPM ranges.

Premium Construction and Engineering:

• Dual valve springs manufactured from premium Superclean Chrome Silicon Vanadium Steel alloy for superior durability and heat resistance
• Computer-designed to ensure wire stress levels remain within optimal limits for extended service life under extreme conditions
• Advanced harmonic control engineering prevents valve float and maintains consistent valve control at high RPM
• Enhanced material memory characteristics provide superior performance retention over time

Complete Kit Includes:

• 16 dual valve springs rated at 80 lbs @ 35.70mm
• 16 steel valve spring retainers
• 16 valve spring seats

This kit is specifically designed for BMW S42, M42, M50, S50, M52, and M54 16-valve engine configurations. The steel retainers offer excellent durability and value for street and track applications. Supertech valve spring kits are trusted by professional engine builders worldwide for their precision manufacturing, consistent quality, and proven performance in demanding motorsports environments.