Just purchased a Champion aluminum radiator off of ebay. Part number is EC6474 for my 1973 Mg Midget vintage racer with a 1275 engine. It is almost a direct fit. It is a bit thicker in the core consequently I had to cut a fourth of an inch off of the verticle sides of the shroud box (used an angle grinder - very easy) but after that it bolted right up and dropped right in. The fasteners that bolt the radiator to the shroud box (two on top and two on the bottom) are metric however 8mm x .125 threads and short. Cannot remember just how short but they were easily under half an inch in length. Workmanship on the radiator looks great. I am using the stock radiator hoses.
We haven't fired the car up yet but will report back with any problems.
We haven't fired the car up yet but will report back with any problems.