I was able to find this info from homebuilt .com.

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1. Re: Help! teledyne 4A084 Military

I have found this document,which describes the result of testing some military general purpose engines (including the 4A084) with different low lead and unleaded fuels.

Around PDF page 31 or so you will find the results of the 4A084 tests, including the measured temperatures and oil pressures. Note that these are what they measured, not the allowed values.

From what I see, the CHT is from about 325 to 510 degrees F. EGT is around 1000 to 1200 degrees. Oil temp around 200 to 260 degrees. Oil pressure from about 30 to 50 psi.