WE ARE NOW OFFERING A CNC PORTED AND HAND FINISHED 24 VALVE CUMMINS CYLINDER HEAD. THIS APPLIES TO ALL COMMON RAIL HEADS AND NON COMMON RAIL HEADS. THE 5.9 COMMON RAIL HEAD FLOWS ABOUT 185 CFM IN STOCK FORM, WHEN WE ARE FINISHED IT WILL FLOW 234 ON THE INTAKE AND 238 ON THE EXHAUST AT .700 LIFT. YOU GET 24 NEW BRONZE VALVE GUIDE LINERS, 24 NEW VALVE SEATS, 24 NEW VALVE SEALS, STOCK VALVES AND SPRINGS. CYLINDER HEAD IS RESURFACED AND VALVE JOB DONE. WE CAN ALSO MACHINE HEAD FOR O RING $150.00 FIRE RING $240.00 WE ALSO OFFER THE HEADS SETS AND HEAD STUDS. THERE WILL BE A $500.00 CORE CHARGE.