#60666

Here are my short comments on some of the items mentioned on cooling.

A stainless spring in the lower hose is an absolute necessity. Without it the pump will suck the hose closed at high RPM and that stops coolant flow. For some reason, auto stores have stopped selling springs. That sounds like a business opportunity for someone.

Thermostats help cooling. A thermostat provides a restriction that increases the pressure inside the pump. The higher pressure reduces efficiency robing pump cavitation. Inside the block, higher pressure reduces steaming pockets at hot spots. So run with a 180F/185F thermostat.

Your hose blew off because the clamp was loose. A good hose will take much more pressure than a 20lb cap.

Block off all holes that allow air into the engine compartment that doesn’t go through the radiator. These are of course the holes at the horns, between the radiator and cross member etc.

Re core the radiator with a modern serpentine core.

Look for the many articles that have been written about cooling. Some can be found in recent Rootes Review By King.