Well, my ritual "break something everytime I go out" is still good. You will remember back when I got the engine running I blew the heater core. The next time out I blew the gasket between the plate and my water pump. I blew the gasket again. I was just wondering if they make a water pump that turns slower. I do have the March underdrive pulleys on. Is it possible to alter the impeller in my aluminum water pump to decrease psi?

 

maybe get an electric pump? i imagine your spinning the motor up there with the stroker and all. also maybe add a restrictor for the heater core 5.0s are bad about blowing them esp with aftermarket non restricted hoses

 

I had an electric pump but sold it before I put the engine together. I couldn't run a heater with the pump so I sold it. Later I seen where a guy tapped off his radiator for the heater hose. Now that I have the march pulley set up I don't know if it would be feasible to switch everything now.
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electric water pump
electric heater
thats what i am trying to do with my GT.

i would look at a different size pulley before trying to modify the impeller