And long before 85, Bleack/ Olds had the 198, later 225 V6, used in the early "mid" cars starting in 62, and later in Jeeps. Even though the 198/225 was an all iron engine, it was a design extension of the Bleiack / Olds 215 aluminum V8
http://en.wikipedia.org/wiki/Buick_V6_engine
