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Originally Posted by AZKen
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What about the law suit in 1959 against GMC for using Pontiac V8 with a GMC sticker? Using Chevy motors is the same false advertising issue?
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I have never found any evidence there actually was a lawsuit regarding GMC's use of Pontiac engines '55-'59. During the same time GMC also used Oldsmobile V-8 engines in some of the larger trucks. In both instances, the Pontiac and Oldsmobile engines were not the same as those used in their respective cars. In fact, the '58 and '59 Pontiac V-8's in GMC's were not even the same displacement. If anyone can produce evidence of this lawsuit, I would really like to see it.
Common knowledge Oshawa built GMC's from '55 on used Chevy V-8's. Most all of those stayed in Canada.
From 1964 on the Chevrolet built 230 and 292 in-line 6's were optional in GMC trucks. The Chevrolet 283 and 327 became R.P.O. in GMC light trucks halfway through the 1967 model year. The Suburban and Panel models got the V-8's at the start of the model year.