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2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
yes it is...on the c3 registry the car before and after your number both were said to be built on OCtober 26th, 1967...so yes its early and yes its going to have harder to find correct parts in some instances. Is it a big block car?
There are at least three different ways that early & late are considered.
Where the car falls in the full production run. If 28,566 units were built in the '68 model year, then this VIN falls just after the first 1/10th of the run; well before the 5/10 divide down the middle.
Where the car falls in the production run by time. Not all days/weeks/months had the same production output. I don't have the monthly production for '68 handy, but it's not difficult to find. This is similar to #1 above but may place the car in a different percentile.
Where the car falls in relation to running changes during the model year. This one is most likely to be where the early & late identifiers are encountered. Cars before a change are considered "early" while those after the change are considered "late". This even applies to cars built in October where the change happened on, say, October 20th. In this case cars built after the 20th are "late" production with regard to that one component or assembly method. Additionally this means an early production car (#1 above) may be considered late for part change order A but early again for part change order B and late again for part change order C. Just look at all the change orders on the pages of the assembly manual! Each one is an early/late point in time.