water flow

heater connection is inlet back to block, or inlet to water pump

connection at top of intake is coming out of engine

water goes in top of radiator and down, out bottom hose into pump

out of pump to block is where pump mounts to block, you cannot see.

through block towards rear and up

forward on upper part and through head to front of heads, out ports of heads in front to crossover on intake

out of crossover at T stat back to radiator