Hey Guys, I just purchased a '68 Chevelle w/ a fresh 427. I am super excited. I took her on the highway for about 30 miles. When I was idling, I noticed white smoke from one side of the exhaust. Did I blow a head gasket? The oil looked clean, but the antifreeze was low. ANY SUGGESTIONS.

How fresh is the engine?

Timing and carb okay? Try a compression test.

take it to a decent shop that has a raditior tester for co2... they can tell if you've got head gasket leak ... could be anything ..blown gasket , cracked head or block, pull plugs & find which one or possibly two are leaking .. if you've only got one clean plug... odds are somethings cracked .... two clean plugs make it more likly a blown head gasket ... good luck

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Could the smoke be something as simple as moisture in the exhaust?

Welcome aboard Travis
I would probably pull the heads and have them checked or do what 68KMENO suggested.

Yeah, I agree with Tim, Before you get all revved up, check the simple stuff first. You may be worrying about nothing.

Some companies don't run their mandrel bent exhaust pipes through a degreaser. The mandrel machine uses a LOT of fluid during the bending process. I'll bet there was some fluid in there that was burning off. Give it one more 1/2 hour run and I'll bet the white smoke will be gone.