waterpump pulley

[blue65coupe]

Having trouble locating a smaller than stock waterpump pulley for a 289. I'm not running any accessories. Just alternator, crank, and waterpump. My goal is to push more water through the engine at idle without replacing the waterpump. Any ideas?

 

[buening]

What waterpump are you using? I'm using the FlowKooler and they claim an increase in flow over stock volume pumps. Its also aluminum to save a bit of weight. Can't help with the pulley though!

 

[blue65coupe]

Stock wp. I've looked at all the pumps but would REALLY like to go the pulley route if possible.

 

[70_Fastback]

I'll ask my buddy where that AL. pulley came from. I got it from him when he swapped to an electric water pump.

 

[66gt350]

What diameter is stock? I've got a smaller chrome one, that I yanked off when I swapped over to serpentine.

 

[blue65coupe]

Thanks J. Rob, IIRC it's something like 6 1/8 outer edge and 5 3/4 inside groove. I'll have to double check those numbers. Thanks.