With expanded mating surfaces

com if you have any questions

NOTE: Direct mount fuel fillers for the older FCST (20-014X-XX

potentially causing valves to drop into the combustion chamber and resulting in catastrophic engine failures

ensuring consistent performance across the rev range

S65 CNC Cylinder Head Porting SCR14812 With expanded mating surfaces5150 AutoSport 5 Axis CNC Cylinder Head Porting for BMW S65 V8 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