There are a few options for the radiator in the Hawk. Many will fit the MGB rad from the donor car or if fitting the Rover V8 may use the larger MGB V8 radiator. As I have installed a 302 Engine , which will have a thirst for cooling water I bought the large capacity copper radiator that Gerry supplies. It is a tight fit in the car, which is not a bad thing as the vast majority of the air flow entering the car will pass through the matrix of rat rad! As good thing. It is really a fiddle to fit and I used all sorts to get it to stay in the right position as I marked up the securing brackets.
You need to be very careful as you don’t want to manage the matrix in anyway, last thong you need is for it to leak at the engine first firing!
Before I fitted to the car I needed to decide what fans to buy! Gerry recommends using blowing fans, which mean they sit on the front of the radiator and blow through the rad. I didn’t want to spoil the look of the car from the front where , if using blowers, they would be clearly visible. (I don’t intend to fit a grill – although will need to find a solution for SVA) So I offered up the rad in to the space and let it at that for now.