heat delete

If you mean loop the hose from one fitting right back to the other one to bypass a heater, then people do it all the time.
They are different size fittings, so some use the larger hose and put it on the smaller nipple and some stretch the small hose over the larger nipple.
You'll have to decide how you want to do that part, but there is zero problems in doing it as far as the motor or cooling system is concerned.

Some thread and plug the nipples of the pump, and some buy rubber caps for them.