I have a 57 235 in my 37 and when I first put it togather I used the short pump with the 216 pulley but there was no room for the fan so I put a electric fan in front of the radiator and it did not over heat,it was not a original radiator but a custom made 4 row with the original tanks. It did not have a working temp gauge at that time but some times I would hear gurgling in the radiator when shutting it off after it was driven hard and got me thinking about one with a correct sized pulley,the shortened water pump broke and went into the radiator so I installed the adapter and used a 54 water pump and got a stock fan on it and while I was doing that found a NOS temp gauge and it does not go over 180 and this is with a non pressurized system. I also found a original shroud of a big truck and installed it but I dont think I really needed it but it was available so I got it.
