CNC porting for stock or oversize valve BMW S50B32 head.
Includes work only, using customers head, valves and parts.
Oversize valves, guides, titanium retainers etc. can be supplied separately.
Price includes CNC porting, valve refacing, seat work, re-surfacing and cylinder head measurements.
Flow increase over stock head is ~6% with stock valves.
Cross section area is increased to give 1000rpm more rew potential and over 400hp capabilities.
Exhaust to Intake flow ratio is high and runners are kept small and efficient for good pulse tuning.
Every cylinder head is hand finished.
Delivery time ~2-months.
Please be in touch with email before ordering to be sure this head fits your purposes.