This is an aftermarket aluminum fan shround for use with dual electric fans. This fan shroud will fit Datsun 240Z & Datsun 260Z 1970-74. Mount 2 12" electric fans of your choice for ultimate cooling! Will fit most all aftermarket aluminum radiators made by Champion or Mishimoto, etc. Will fit original radiator with some slight mods to the shroud. The dual fan set up allows for more clearance at the front of the engine if you are doing a motor swap. The 12" electric fans we sell will fit this shroud, we cannot guarantee that other brands of 12" electric fans will fit this shroud.