Hi, thanks for that. I need to ask the builder about the pump. Did not get into this with him. Is it a GM pump? What reason you switched to electric pump?

 

Question on water pumps - you can have either hi volume or high flow? Or it is both together?

For what reason you need a high flow / high volume?

 

Different name for the same thing.

 

And for what purpose you need one?

 

Need one what? I don't know what I need? Do you mean a hi flow pump? If so, there are debates both ways that say you do or don't need one. Some people say the faster you flow the coolant, the less time it has to get hot in the engine. Others say don't move it fast, or it wont have enough time in the radiator to properly cool.
I can tell you have had both hi volume, and stock pumps, and honestly never noticed a difference in temperature. Some drag racers run very small radiators and feel they need a hi volume pump to keep coolant circulating and with such small volume, and restricted flow.

 

That might be an issue if you weren't running a thermostat, where the coolant is constantly circulating. But with the stat in place (and closed), the coolant remains in the engine and radiator till the stat opens again.

 

I was referring to me - if I need a hi volume pump or not. But with all the posts, I can stay with a standard pump.

 

The pump I have is the one out of the GM Performance Parts catalogue for the zz572. We decided early on in the build that we were going electric everything, fans, fuel, and water. Also have the GMPP big block fuel pump.

 

I wouldn't get too far ahead ordering engine accessories until you've got the engine. Once you have one on order and the maker tells you what comes with it, then you can order parts. Often a complete crate engine comes with water pump, and other parts that you might duplicate by getting ahead of yourself.

 

^^ Words of wisdom, that is one of the reason i have doubles on a lot of parts ^^