[Naja]

I have heard from several "classic" car builders that a Ford water pump (at least for a 429/460) should turn 1/3 faster than the crank. Opinions?

I have a March set with the large water pump pulley. The water pump is turning slightly slower than the crank. I figure that I can get better cooling at residential speeds if I get a smaller puller for the water pump. March makes a smaller pulley, but that only brings the pump to 10% faster than the crank. I haven't been able to find anyone with a 429/460 stock pulley to find out its diameter. If 5 inches or less, I can probably use it. Otherwise, I need to have one made for $$$.

Any thoughts?

Thanx.

Frank