68 roadster







'68 L68 Roadster in #2 excellent condition..$69,400. #3 good..$38k.
Add 10% for the 4-speed, $2k for A/C & $2500 for P/S.
Motor out...price accordingly..
..
Even C3's (and C2's) that spent most or all of their lives in a dry climate will generally have some surface rust. If it spent any amount of time in the Midwest or East coast and was driven all year around (as they often were back in the day) there will be rust issues. It is commonplace in these generations. The box frames the bodies sit on are of an inferior design that were inadvertently designed to trap water and moisture of all types, mud, snow, salt, etc etc.
The chassis/frame condition will absolutely affect value, either way, depending on condition - Therefore, it is impossible to accurately value without knowing the condition of the frame.
Last edited by Corvette-ZL1; Sep 13, 2023 at 12:42 PM.
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Beware of undercoating - undercoating is a great concealer of rust. If the frame and birdcage (at least what you can see - full view of birdcage requires dash and window trim removal - sellers won't let you do that), then everything else is pretty much gravy.
Again, it is impossible to accurately determine value without knowing the condition of the frame and birdcage. Do no overlook it.












The 390 horse is a great motor and the same as the 400. You just have 2 less carbeurators to mess with.
The 390 horse is a great motor and the same as the 400. You just have 2 less carbeurators to mess with.
It's really not all about how well it was cared for, because I don't think that many owners way back when knew to power wash the underside of their C3s every time after driving it in the snow. That would have been the only way to mitigate the issue, or just not drive it in the snow at all.
The overall mentality was very different back when these cars were new - most drove them as cars, and not as fair whether cars only. The Summer, Fall, fair weather-only car is a relatively new mindset probably from the mid-80's on, if I were to guess - Especially so with C3 (and C2) owners who understand the inferior design of these steel box frames which tend to collect stuff that shouldn't be in there (snow, water, mud, salt, etc etc).
Example - If the car was originally a So Cal car for it's first 30 years, and was moved to OH 20 years ago, then that's probably just fine. If it's been an Arizona car for the past 30 years, but spent its first 20 years in Ohio, that's very likely going to be an issue.
I suspect all of those SW area frames you referred to were probably East Coast or Midwest cars driven all year round during the first few years and were migrated to the SW at some point - the issue with that is that the damage is already done.
Exception would be a West Coast car improperly stored in a seaside town with salt in the air. However, there is nothing like the damage done by road salt - nothing is even close.
Last edited by Corvette-ZL1; Sep 18, 2023 at 10:41 AM.


Last edited by Corvette-ZL1; Sep 18, 2023 at 11:35 AM.












Downside is the internal side of the frame will rust in any humid climate...cant get around that









