my 22 inch radiator was a 2 row for my big block. I took it down to the rad shop and had them build me a 3 row . Total cost was 226 bucks. Cools my 440-6 just fine with a shroud and factory thermal clutch fan, with 180 thermostat. It runs between 184-195 degrees . My block was clean and new water pump with correct pullies.
195 in traffic lights in town and 183 cruisin 16 lb non vented cap
