howdy----I had one installed in my TR3 several years ago, so likely the same fitment. perfect bolt in----well designed. it has made a remarkable difference in warm weather and/or slow traffic-----having a new unit with no blockage from the years provided a dramatic improvement in cooling----never gets above the mid-point on the gauge. what also helps is, while not original, eliminating the crank hole, which blocked several tubes, increases the flow around 20%. for cold weather driving I have to cover a portion of the radiator to block part of the airflow, and also let the car warm up completely before getting on the road, because otherwise it would not even get off the cold mark.