273 Overheating

74Dusted said
It didn't used to overheat, when I had a badly leaking 26" C-Body Radiator in the truck.

Any ideas on why it would start overheating now?

If it did not overheat with a 26'' radiator, put another 26" radiator back in.

Sounds like the 22" does not have enough core surface or fulid capacity to do the job.

Herb