"constant state of anxiety when driving in the Dallas summer as the temp gauge would get close to 200 degrees"
Actually, it is pretty normal for the gauge to hover around 185-210F in the 164. My DD 91S has done that since I bought it in 94, and the 94LS is pretty much the same, even in the summertime Southwest. Max limit for the pressurized coolant in these systems is ~260F.
However, I understand your squeamish feeling, we being more used to colder engines from the old days. My experience with the 164 is that if all is working correctly and in good condition, all will be well, as compared to say the Milano which, except for the Verde, had an undersized radiator. That standard radiator is NOA, replaced by the Verde unit. Our Milano ran very hot (red light and all) in Arizona on our way to Texas, having to pull the front license plate to get a little more cooling, besides running the heater, lol. It was awful!!
1989 Milano, Shankle Sport
1991 164S, stock
1994 164LS (~Q)
1972 Morgan 27
previously owned since 1964:
62 Morris MiniMinor 850, 67 Austin 1275 Cooper S (Downton 3/4 race), 64 Giulia Sprint GT (1st red one made), 72 Fiat 128 Sedan, 75 Alfetta Sedan, 78 Alfetta Sedan, 78 GTV, 81 GTV6, 86 GTV6
Last edited by Del; 04-25-2016 at 05:28 PM.