99 2.5 boxster engine failure? (white smoke)

[idheaton]

The transmission will work.

You will use the flywheel from your boxster engine as the 3.4 flywheel is thicker and will rub the bellhousing if used. A sport clutch was put in my boxster although I'm not entirely sure what that means in regards to it being a better boxster clutch or a 996 clutch.

You can use the muffler but for performance reasons you will want to get new headers and cats as your manifold will be too restrictive and the ones on the 3.4 are reversed because the engine sits reversed in the two models

In addition to the above your old engine will have to be a donor for some parts...such as the fuel rails if i remember correctly...again, because they are reversed.

I think there were a few other parts used as well but I do not remember which ones.