318 crank pulley correct size??

krazykuda said

The one that I posted is supposed to be the correct one for non-A/C applications... That's what worked on ours...

A/C uses a double belt and double pulleys to drive it...

Non A/C only uses single pulley and belt...

If you use the proper combination, it will line up correctly with the aluminum water pump...

Cast iron water pump takes different pulleys...

Click to expand...

Kuda, educate me. I have the 30787 water pump. This appear to be the cast iron pump (magnet sticks)
So it seems that since I'm planning on replacing the pump, going for the alum. pump would match pulley.
My problem is ...I have a drivers side lower radiator hose outlet. So with current crank pulley..I would need alum. pump, new water pump pulley and passenger side lower hose radiator.