- Head Gasket Protection: Fire rings protect the head gasket by providing a secondary barrier to combustion gases

high horsepower builds

ARP Oil Sprocket Bolt – Secure high-RPM cam timing with superior fatigue resistance over factory bolts

-PTFE Impregenated 1/8" NPT Plugs (x2)

Lightweight Forged Aluminum Construction – reduces piston weight for faster throttle response and improved engine acceleration

M52TU CNC Cylinder Head Porting E38 - Head Gasket Protection: Fire5150 AutoSport 5 Axis CNC Cylinder Head Porting for BMW M52TU Engines Please note that price is based on customer providing disassembled, clean core. If you need help sourcing a core, please contact our sales team. Also note that this service includes a 1 2 week turnaround time for service completion, beginning when the 5150 Team receives your head. Investing in cylinder head porting for your high performance BMW engine enhances airflow efficiency for