small block electric water pump
Another way you could get around the heater problem is to do like "bluk" GM used to do--one heater hose out of the water outlet just like stock, the return hose goes to a fitting up on the radiator tank.
Like the one below. The fittings on the top tank, top to bottom are
filler cap, HEATER RETURN, cooler line, cooler line, bottom hose, drain
If there's any question about flow/ pressure, I BELIEVE you could guarantee good flow by putting a fitting in the BOTTOM tank on a vertical rad.
Another way you could get around the heater problem is to do like "bluk" GM used to do--one heater hose out of the water outlet just like stock, the return hose goes to a fitting up on the radiator tank.
Like the one below. The fittings on the top tank, top to bottom are
filler cap, HEATER RETURN, cooler line, cooler line, bottom hose, drain
If there's any question about flow/ pressure, I BELIEVE you could guarantee good flow by putting a fitting in the BOTTOM tank on a vertical rad.