Above all else, make sure your serpentine belt systems are looked after.
The alternator will cause belt tensioner chatter, and allow a loose belt, or damage the spring or shock.

It isnt the cooling system that kills the head... it is driving after the belt breaks... ANY distance.
Sure, clean radiator, working fan, and water pump are ideal to keep engine temps stable, but driving with a coolant leak, or a broken belt are the death nails for the head.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!