If you are going to run in AZ a large nonstandard
Oil cooler is a must BB or SB. We have run a 504,s with AC in parade in a 110 degrees whit the engine at 209 degrees. and this engine is over 600HP You must have adiqit
oil cooling no mater what you run in hot whether. A bigger
oil sump just means you have moor oil to cool. a bigger radiator is no good if the fan cannot pull enough CFM to utilize it.