S52 heads are the same as the M50/M52 They are cheap and there are tons of them around. You will need your cams and valves though. __________________ Pierre 96 318ti (S52), 97 318ti, 95 318ti, 69 2002 (M20), 74 2002tii, 76 530i (3.3), 79 323i, 81 528i, 90 325i, 91 318is, 97 Z3, 2002 330i, 2002 R1150RT. O==00==O |