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