74 vette with 78 back window
As far as the 74 having more horsepower, there's nothing to stop you from building up the 77's engine. Personally, I'd prefer to build (or have built) my own engine. That way it's built the way I want it and I know exactly how it was built. Do you really know that the 74 engine can produce 375 horses, or have any idea how it was built?
From my experience, most pre 78 Corvettes, that have had a 78-82 rear window installed, have actually had a whole 78-82 rear clip installed. This is usually done because the car was hit hard enough in the rear, that they needed to have the clip replaced.
If you really prefer the look of the 74 with the 78 rear window, I would keep looking until you found a 78-79 you liked. They're out there in the same price range that your looking at.




This does not mean you should not buy what you want. However, what it does mean is that you 1. must go into it with your eyes open, in that resale may be next to nothing. A '74 as you describe isnt worth much to begin with, and when you deduct for cutting off the rear clip and gluing on the wrong year tail PLUS needing paint, the car isnt worth much of anything.
#2 is, dont PAY for lost value due to modifications. Id never tell someone they should not buy a car you describe, if thats actually something you like. However, dont you dare pay $5000. Bad paint, wrong engine, big back window? I think $3500 is too much, but it could be fun to play with at that point.
Just dont plan on selling it.
Regarding what other people might say... its easy to say you "shouldnt care" what people say. However, since you asked, I think it matters to you. Corvette people can be a little snotty and you will get some disapproving responses. You will. However, again, part of owning custom cars is ignoring that stuff- it comes with the landscape. You wont get the sheer laughter some people would get, say, if they grafted on chrome front ends or tails on post-74 cars, but you will gets some frowns.











