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Old 02-22-2015, 12:03 PM
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ponyakr ponyakr is offline
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Join Date: Dec 2011
Location: North Louisiana
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I don't know for sure, but here is a second article I found that says the '78 GA came std with a 301 2-barrel engine(except in CA). Then, the '79 & '80 GA came std with the V6.

http://www.hotrod.com/cars/featured/...tiac-grand-am/