Actually, the 283 and 327 were both available since 1966. I did wonder about the 396 though, some books say that it was available in 1967 but here http://www.pattson.com/maych/67_72_chevy.htm they say 1968. As for the GMC 305 and 351 V6 engines, some books don't show them much after 1966, but I have seen them in quite a few of the 67-72 GMC trucks.


TruckNut

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