[trularin]

I have found on the Cleveland engine that proper assembly is directly related to the cooling.

I put the 3/16 hole in the head gasket and brass drains at the plugs. I soaked the block in caustic soda before all machine work. I even replaced the restrictor at the Thermostat. I put 1/8" hole in the thermostat and set it at 185 degrees.

I use a Griffin radiator with a single 16" Bosch fan ( made it myself, needs to be revisited ). There is an automatic start relay and a manual switch to activate the fan.

With all this, sitting, the fan runs for about three minutes and shuts off. It is a three on, three off cycle.

I use 50/50 mix on anti freeze and have pump lube with redline wetter in the cooling system as added fluids.

Just my $0.02