It's scary to think our SC's don't have more protection from over-heating built in, or perhaps your warning light or gauge wasn't working. It's easy to overlook a gauge that is abnormally high, so I would hope any good design would include a warning light in addition. Since the entire engine is at risk of self-destruction from over-heating, manufacturers should incorporate a warning bell, as well.

I've heard/seen too many stories like this over the years. In 1974, I seized the engine in my girlfriend's 72 AMC Javelin on I-5, by Los Banos, in 100 degree weather. Same deal, I didn't see any steam and only knew to look at the gauge once the engine started losing power. Luckily, after a tow and having my wallet emptied at a gas station, I was able to limp home and replace both head gaskets before getting back on the road.

 

It is scary but extremely uncommon. I would suggest replacing the radiator by 130k miles or after 14 years as preventative maintenance. Small price to pay for peace of mind.

Order the OEM Denso radiator off RockAuto and the upper and lower hoses. Much cheaper than the dealer and it's the same parts. Thermostat too. Then pay for labor only or do it yourself. 👍