the factory OEM block's spray-on iron layer falls short

a wider power band

BMW M20B27 Applications:

- There are no returns available on any engine bearings

This dual pump hanger has been proven on many high horsepower cars making between 700 and 1

BMW N55/S55 Valves by SuperTech Valve Locks:Add Valve Locks the factory OEM block's spray-onThis Supertech High Performance Valve Kit is expertly designed for BMW N55 and S55 engines, providing an essential cylinder head upgrade for high performance applications. Engineered to withstand the rigors of demanding performance conditions, these valves enhance durability and reliability, ensuring optimal valvetrain efficiency and engine power output. Renowned among engine builders, Supertech is celebrated for its precision engineering and superior