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I have a 09 3.6 Acadia vin code "D" that im sure broke another timing chain. Can someone help me out with a list of the years thats interchangeable? I dont mind to interchange a few components off my 09 to a newer model motor if needed. So as long as its a "d" vin what years are exactly interchangeable, and what yrs are interchangeable with swapping a few parts over? Thanks
 

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On the yrs thats interchangeable with just part swaps, what parts have to be changed? Thanks
 

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Welcome to the forum.
Engines from 2009-2016 will work (2017 Acadia Limited, too, if you can find one). Information in this linked thread should be helpful to you. Search "engine swap" using the forum search tool and you'll find other threads on the subject.
 

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You could use any LLT (VIN code D) engine, however one from an Acadia, Enclave, Outlook, or Traverse would be the most direct swap.
 

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Thanks, do you hear of very many 3.6's breaking only the timing chain without damaging the valves? Always heard that when chain breaks on a vehicle thats variable timing it ruins a valve or two?
 

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The engine is an interference type. When a timing chain breaks, it can harm valves and other parts. Severity depends a lot on engine speed (rpm) when the failure occurs. Haven't read about too many failures without some type of indicator something was wrong beforehand, i.e. CEL, engine rattle, low oil pressure, noticeable drop in performance.
 

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Discussion Starter #9
Thanks speleos, one last thing lol. So Camaro and cts short blocks would work using my heads correct?
 

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For the purpose of any meaningful discussion, you must define what you mean by "short block." Short block to me is just an engine block with crankshaft, rods, and pistons. Taking something from the models you suggest may mean changing more than just cylinder heads. It could also involve oil pans, timing chain sprockets, flex plates, etc., etc. Your best bet is getting an engine from something in which it is mounted transversely instead of longitudinally, and not a high-performance type.
 

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For the purpose of any meaningful discussion, you must define what you mean by "short block." Short block to me is just an engine block with crankshaft, rods, and pistons. Taking something from the models you suggest may mean changing more than just cylinder heads. It could also involve oil pans, timing chain sprockets, flex plates, etc., etc. Your best bet is getting an engine from something in which it is mounted transversely instead of longitudinally, and not a high-performance type.
Sort of my thoughts. I would be shopping for a complete engine and not a short block.
 
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