70+ Water Pump Differences- a/c vs no a/c??

[xLURKxDOGx]

Is there a difference between the water pump other than 6/8 blade? I’ve got a bigger radiator I’m putting in and it’s passanger side exit so I’m switching from cast the cast style but wanted to make sure their wasnt a difference in position of the pulleys.

Thanks.

 

[teringer]

That's the only difference I've seen.

 

[xLURKxDOGx]

That's the only difference I've seen.

My concern was that maybe the shaft was longer on the a/c that would create and issue when using a 70+ 2 belt pulley.

Thanks.

 

[diymirage]

There is a difference in vanes between the A.C. and non A.C. versions (What exactly it is, I'm not sure)

 

[Mattax]

Some more info here:
Water pump impeller styles?
Might be more threads like it, this one happened to be pretty recent