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2004 buick rainier
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1 Posts
Discussion Starter #1
What are the difference between 2006/7 and 2008/9 4.2 engines. Thank you, I have one of each and need to R&R engines in both. I have a chanch to buy 2 both from 2007.
 

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2002 chevy trailblazer_lt
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456 Posts
I have limited knowledge of the details but a 2008 or 2009 can only be swapped with another 2008 or 2009. Seen it a bunch of times when someone unknowingly puts an earlier engine in (or the opposite) only to discover afterwards when they cannot get it to run that is damn near impossible to get it to work. Short of getting some esoteric standalone control system to make it run.
 
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