Re: 1967 chevelle ss 396-375 id.
If you don't have a Protect-O-Plate, original invoice, window sticker or build sheet you are kinda out of luck. There is no difference in the car from a 396 325 or 350 other than tach redline. One thing, 375s came standard with a 3.73 rear end. The other engines used 3.31s and 3.55s. A 375 could have been ordered with any axle ratio as could the other engines, but not usually. Frank
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