Is it possible.....???

[JFP in PA]

Originally Posted by Adam

The 3.4-3.8L engines are not physically bigger than your Boxster engine. If you put a 3.8L right next to a 2.7L the layman would have trouble telling which one is which. The increase in size is all internal by more stroke/bore so I don't see why there wouldn't be enough room. Somone with experience in swaps might be able to get more into the details or point out potential problems.

Actually, both the 3.4 and 3.6 have slightly taller intake manifolds (just enough to cause interference), which create top clearance issues that require fooling with the engine mounts to get the necessary vertical clearance .....

[TimAustinW]

I'm approaching 100k miles fast. My 2.7 is in the shop for an oil change today and look over and they found some minor oil leaks coming off the cams and RMS. They quoted me around $3100 for the repairs. I couldn't help but think that $3100 combined with another $5000 could get me a decent 3.4 or 3.6 engine. I love my Boxster to the point of obsession but I've always wanted more power. After reading the article in Excellence this month where the guy converted his '98 2.5 over to a 3.4 I'm totally sold that at some point I'm going to do this. I'd rather not spend thousands maintaining my 2.7 engine when that cash could go towards the swap.

The question is what would be more cost effective, a 3.4 or 3.6 swap or have my current engine bored out like the service Flat 6 Innovations provides?

:troll:

[Adam]

Originally Posted by JFP in PA

Actually, both the 3.4 and 3.6 have slightly taller intake manifolds (just enough to cause interference), which create top clearance issues that require fooling with the engine mounts to get the necessary vertical clearance .....

Correct and that's a well known issue everyone who swaps engines deals with. I was referring to the size of the case and heads.

[landrovered]

A bit of advice,

I had an old land rover with a 2.25l petrol engine that has needed the timing chain replaced. I had a 5 cylinder mercedes diesel sitting there and it seemed to me at the time like the perfect time to swap engines. Boy was I wrong.

Long story short, it cost me thousands of dollars and almost a year of time to get the swap completed. in retrospect I should have replaced the timing chain and I could have been driving it the whole time. I should have bought another transmission and put the new engine combination together outside of the truck and then swaped it all at one time.

$1500 or $3100 for a repair is a drop in the bucket compared to an engine swap and if you do the repair then you can plan your swap while enjoying the car. I am all for swaps but there is a right time and a wrong time to do them.

[PlayersExpress]

Originally Posted by landrovered

$1500 or $3100 for a repair is a drop in the bucket compared to an engine swap and if you do the repair then you can plan your swap while enjoying the car. I am all for swaps but there is a right time and a wrong time to do them.

Understandable, but I do have a second car now that I also enjoy

[landrovered]

I have five cars, I still missed driving the truck and should have repaired the timing chain instead of using the event as a launching pad to undertake a significantly more complicated endeavor. Don't get me wrong, I would have done the swap eventually but swaps are never as easy as you think they will be.

Just food for thought.