hmmm...check the prices. Another chemical clean won't do the trick on a radiator that is clogged with rust. If it's from the block, another chemical flush may help. Where is the brown coming from, the block side or the radiator side?
You'll need the tubes punched more then likely. Ask the price of having the tubes punched. Just FYI for comparison, a new 3-row radiator for a 65 mustang (stock is 2 row) is $180, so if punching is going to run that much, you may want to buy a new one. That's what I did, punching my tubes was going to run about $150, so I'd rather spend another $30 and get a new improved version. Haven't had an issue since. But then again, my cooling system is 100% new. All new hoses, Tstat, pump, heater core and radiator by the time I was done with it.
Slade
You'll need the tubes punched more then likely. Ask the price of having the tubes punched. Just FYI for comparison, a new 3-row radiator for a 65 mustang (stock is 2 row) is $180, so if punching is going to run that much, you may want to buy a new one. That's what I did, punching my tubes was going to run about $150, so I'd rather spend another $30 and get a new improved version. Haven't had an issue since. But then again, my cooling system is 100% new. All new hoses, Tstat, pump, heater core and radiator by the time I was done with it.
Slade