Pulled 63 Falcon 170/2sp, putting in a 79 Fairmont 200/C4, the performance hand book says to remove the crank pulley from the 170 and install it on the 200 but, the 170 has 3-bolts and the 200 has 4 bolts. The water pump pulley from the 170 is a little to big and rubs on the 200 crank pulley. Is there a little smaller dia. pulley that I can use on the water pump of the 200 so I don't have to pull the crank pulley of the 200? All I'am running is the Alt & water pump. The water pump pulley is 5-5/8 dia. I don't think the crank pulleys are interchangable. :thanks: Notdone