 
                                        B58 Cylinder Head Service by 5150 AutoSport
5150 Autosport Pro-Xtreme Cylinder Head Service for BMW / Toyota B58 Engines Please note that price is based on customer providing core. If you need help sourcing a core, please contact our sales team. Maximize the performance of your B58 engine with 5150 AutoSport’s Pro-Xtreme Cylinder Head Service. Designed for high-horsepower builds, this service enhances airflow, combustion efficiency, and valvetrain stability for increased power and reliability. Service Includes: Comprehensive Inspection & CleaningEach cylinder head undergoes complete disassembly, crack and pressure testing, and thorough cleaning to remove contaminants, ensuring a solid foundation for performance upgrades. Performance Valve GuidesUpgraded high-performance valve guides provide superior heat resistance, reduced friction, and precise valve alignment, minimizing valve float at high RPMs. CNC Porting for Improved AirflowCNC-machined intake and exhaust ports optimize flow, reducing turbulence and increasing efficien
