Kelford Cams - Package-Neo-1 | RB25DET NEOKelford Cams Package Neo 1 RB25DET NEO 244HV B: 268 280 11. 0mm 11. 0mm Valve Lift Note: This kit is shimless and requires a qualified trades person to machine and setup the head for best results. Intake requires a 45. 10mm 45. 40mm Tip height Exhaust requires 49. 00mm 49. 30mm Tip height These tip heights will get valve clearances close, machine the tip of the valves to set the correct clearances. Best results are done using a torque plate. KVS244