I want to keep on the correct pulleys and pump on the engine it my reasoning for wanting to make it work. I have an RB pump and pulley that I measured and it is 2.37" from water pump housing mouning surface to the center line of pulley. The #2 pump I pictured I found out is 2.75" so I think it is the correct pump as the Hemi pulley is suppose to stick out a little further then the RB pulley.

I also accuratley measured everything tonight and I need a .717 spacer to line the crank up with water pump pulley. Doing that I have exactly 2.754" from water pump housing mount to center of Steering groove on the crank. That is pretty darn cloe to 2.75 that the pump measures.

I found where I can get a .70 spacer pretty reasonable which is problably close enough. They also have a 1" I could get and turn it down to .717. Going to double check my numbers and order one.