I am guessing by your top mounted distributor that you are running an 8BA engine. In that case, you really had no choice but to use the 8BA truck water pump. The car water pumps for that year do not have the motor mount wings to mount the engine.
A original carrier engine would have had the distributor mounted directly off the cam, between the two water pumps. In that case the proper pumps used a two groove pulley. The pulleys were closer to the engine since the belts do not have to clear the distributer shaft like on the 8BA engine.
For an original carrier engine, the water pumps are the heavy duty ones, with proper bearings instead of bushings like used on the lighter duty single pulley pumps.
Rebuilt double pulley pumps are hard to come buy, but the rebuild kits for them are reasonably priced form MAC's.
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06-01-11, 05:15
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