S&S cam support plates are just what the doctor ordered when repairing a damaged engine or installing new camshafts. CNC machined from forged aluminum for excellent strength and dimensional accuracy. S&S cam support plates are available to fit 1999 thru 2006 and 2007 to present Harley-Davidson Twin Cam engines. S&S does not want to encourage bad habits so the cam plates for 1999 thru 2006 are not compatible with the stock style spring-loaded chain tensioners, and require late style oil pump and hydraulic tensioners like ZPN 723243. We suggest the new S&S oil pumps to be installed with new cam support plates.