Rpetrecz, you might think twice before attempting such a retrofit. I recently purchased a 90,000 mile 2001 Boxster S for $3,500 after the owner spent 4 years and $20,000 trying to make work a 2004 to 2001 retrofit.
The owner before him discovered an oil-water intermix problem, and was convinced, purportedly by a Porsche dealership service department, that he needed an entirely-new engine. Faced with the crushing price quote, he sold it at a low price.
The next owner, completely new to Boxsters, concluded it would be cheaper just to swap the engine for a used 3.2 engine, which he purchased on a large online auction site.
After several misadventures with local indies, he finally recognized the subtle differences in the engine management systems. By then, the engine seller refused to take it back. The owner then started cutting up the wiring harness to modify it, this after removing and reinstalling the engine several times. Finally, he dropped the flywheel assembly on himself and bent several CPS tabs. After driving the car 500 miles in 4 years, spending a kilogram of Benjamins, and getting hurt, he sold it,disassembled,to me.
It has a bad oil cooler. $30.
But the oil-water emulsion is like pancake batter. No, you can’t get it out with Dawn, Tide, etc.
Looks like I’ll have to take the engine out, pull off the heads, rinse the goo out of the water jackets, pressure test the heads, and reassemble it.
Anybody have an engine yoke for sale?
Do your wiring system analysis in detail before you spend money.
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