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2010 Boxster 3.4 engine in 2006 Cayman S?


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I found a 2006 Cayman S 3.4 with two bad cylinders (2 & 5). These engines seem to be in short supply. I asked my Porsche dealer for the price of the crate engine. He said that there are no crate engines, but he would try to find a short block. I found a 2010 Boxster S 3.4 engine. Would it be possible to install this engine in a 2006 Cayman?

Best regards,

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I found a 2006 Cayman S 3.4 with two bad cylinders (2 & 5). These engines seem to be in short supply. I asked my Porsche dealer for the price of the crate engine. He said that there are no crate engines, but he would try to find a short block. I found a 2010 Boxster S 3.4 engine. Would it be possible to install this engine in a 2006 Cayman?

Best regards,

It is often said that with enough time, money, welding rod, and duct tape; anything is possible. But the question is, would the view be worth the climb...... The later engine has significant system changes, your 2006 engine uses a 7.8.1 DME, the 2010 engine would use a SD13 DME. The 2010 engine is setup for DFI, which your car lacks; amongst other changes you would need to make would be to retrofit the 1700 PSIG fuel system from the 2010 car into your 2006 chassis, which is a major undertaking. And that is only scratching the surface of the changes required.

I think you need to expand your search for a replacement engine that matches your car, or consider having a top flight engine builder like Flat Six Innovations re-do yours; even with a lot of updates, it would probably be cheaper and would produce a lot of power while bolting right in.

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