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Old 09-26-2009, 01:53 PM   #17
2000GAGT
Turbo 3.5L LX9
 
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AKA: Steven
Join Date: Jun 2004
Location: Shakopee, Minnesota
Age: 36
Posts: 137
Vehicle: 2000 Grand AM GT
2000GAGT Gettin' there
there are some benefits to the swap...my biggest was going from an LA1 engine with 186K to an LX9 with 26K.

- higher compression 9.8:1 vs 9.5:1
- oil squiters on the two hottest cylinders
- larger throat on the upper intake manifold and you can adapt the 65mm throttle body
- adjustable timing +10/-5 from the external crank trigger
- better lower intake manifold gasket design so it should never leak
- better designed for oil filter position
- longer pushrods
- of course larger cylinders 3.5L vs 3.4L
- Steel crank
- Same redline
- probably a bunch im forgetting

I would say the engine is more reliable but of course time will tell.

as far as power, the G6 is rated with this engine 200HP @ 5600 and 220TQ @ 3900
I believe our 3400 is 175 @ 4800 and 205 @ 4000 so the 3.5l has a stronger powerband

Last edited by 2000GAGT; 09-28-2009 at 01:02 PM.
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