Hello all- I was considering installing fan clutch part number 1560257. SI's page says "Fan clutch, 1963-64 all models with viscous including Avanti. Replacement unit saves power, gives better cooling and reduces noise." My question is did the motor have to originally have a viscous fan for this part to line up and be installed? Right now I have a standard shaft and 6 blade fan. I was thinking the fan clutch could save a little gas and move the fan forward into the fan cowl, closer to the radiator core. But I do not want to mess with it if it means jumping though alot of hoops. I might be willing to upgrade to a HD water pump if needed. I have no idea how old the water pump is on this car and I go through them almost as fast as alternators.
Tony in Austin