suntreemcanic
Experienced Member
I am using a long neck water pump out of a 1959 401 engine. I would like to put a fan clutch on this engine. The bolt pattern that Buick used to attach fan to water pump was 4 bolts X 1 ¾ inch bolt pattern. Hayden Cooling Products does not have a fan clutch with that pattern. Does anyone know of a fan clutch that will fit a Buick. The reason for this long neck stuff is my 425 engine in a 1952 Buick Super frame, the engine had to be lowered down so the transmission would clear the trans. hump and have a proper angle to the rear differential. So since I have about 14 inches between the water pump and the radiator I could move the fan forward and then it is ahead of the cross member and a 20 inch diameter fan will fit perfectly. and the fan is still about 6 inches from the radiator (big cars are just great to work on and modify.)
