I use a Spal 18 inch puller I bought from Old Air Products (in Ft Worth). I use it with their shroud made for the AD truck and it is the VA18-ap7/LL-594 fan. It is rated at 2023 cfm and if you have a decent radiator and the engine is clean it will keep things cool even at 110 degrees outside temperature. I use it with the thermostat control. As I recall it takes apx 20 amps. I have it on a Bosch style relay controlled by the adj thermostat. Won't be a problem on the 350 but with the 235 you'd need a short water pump.


~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end