[66Mutt]

As my handle suggests, my car is a Mutt. It is a 66 Lemans with power steering and A/C. When I bought it, it had a 69 400 block with a 68 timing cover. The old balancer was too big and had rubbed the tips off of the timing indicator scale on the timing cover.

I had the engine rebuilt and bought a 69 & up timing cover. I bought a new water pump and when bolting on the pulleys, I found that the fan pulley sticks out too far forward. I got online and started noticing that there were two water pumps for 69. One has a snout of about 4" and the other about 4.5". I have the longer snout pump. I am thinking of ordering the short snout pump, but I am not sure that will cure the offset. The pulleys appeared to be about 0.7" forward, and the short pump may only make up about 0.5" of that offset.

My question has to do with the pulleys. In a restoration book, I looked up the numbers on my pulleys and I apparently have a set of 69 crank pulleys and a 68 water pump pulley. Is there a difference in the back spacing or depth between a 68 water pump pulley and the 69 pulley? If the 69 has more back spacing or depth, it may line the belts up better.

I'm wondering if the reason the belts lined up before was because of the differences in the 68 and 69 timing covers and water pumps or is it a situation with different back spacing on the pulleys.
Thank you,
Doug