I have 97 grand prix 3.8. Will a 06 3.8 engine work?

Question

I have 97 grand prix 3.8. Will a 06 3.8 engine work?

Answer 1

Should fit fine.

Answer 2

There won't be a problem fitting the motor.  That's the easy part.  But there are 4 different 3800 series motors in circulation.  You will be changing from a Series II to a Series III, and you may also have to change the ECM, but other than that it will bolt on fine

Answer 3

the base engine is the same.  that meaning the block and internals, heads, oil pan, timing cover.  97 uses the series II engine and the 06 uses the series III. The series III uses a returnless fuel system unlike the series II that uses a return style fuel system. I just went through this same situation.  I had a 96 Buick with series II that needed an engine.  I found a complete front end drop out from a 04 grand prix for $400 with 42,000 miles.  I was unsure of the interchange because the 8th digit of the vin was different.

After doing some research in the gm MicroCat parts selling system, I was able to determine that the base engine is the same.  You will likely have to some switching of the parts from your old engine to the new one such as emissions items, exhaust manifolds, fuel rail, etc.

But, yes, the 06 3.8 base engine will work in your 97.  The reason I know it will work is because when I looked up the part number for a Goodwrench engine for a 97 3.8, it is listed as 89017861.  For the 06, it lists the same part number for the partial engine.  Goodwrench  engine is described as "block, crankshaft, balancer, flywheel, balancer

shaft, pistons, cylinder heads, oil pan, front cover, valve covers, camshaft.  It's best if you get both engines sitting side by side so you can note all of the external items you will have to change.

Answer 4

the engine itself might fit ok, but i think they had more emissions in the newer years. that,s a d**n good engine there.