Check out the thread "What Engine" in the modifications and technical issues section right now. It pertains to USDM manual transmission engines, but is relevant.
I know in the USDM engines, the manual engine is slightly higher compression and thus more powerful and economical. I believe it can be swapped 1-for-1 with a CVT engine, though you'll need your old fuel rail as the manual engines use a return system rather than a returnless. Lean burn comes from the ECU, not the engine itself, but the JDM CVT engine might or might not also have the higher compression of the USDM MT.
Silver 2000 5MT -
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