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2.3 to 2.5 engine swap - intake adapter plate

80K views 59 replies 21 participants last post by  RayBay  
#1 ·
Ok guys I just bought a 2008 Milan for cheap with dead 2.3. It ate the oil and they drove it with no/low oil and killed all the bearings in the engine. I wanted the newest cheapest car I could find and the replacement engine had to be cheap also. I did all the research and found out the 2.3 has a bit of problems and the used engines are priced high and they all have 100 plus K on them. The 2010 to 2012 2.5's have a better rep and you can score low mileage ones cheap.
The problem with the 2.5 is it has taller intake ports and matching intake that does not have the charge plates and other sensors on it like the older models like mine have. So like mentioned here you can't use the 10-12 intake. The older intake leaves a gap at top that needs to be sealed. So this is where I machined up the intake adapter plate and gasket. The 2.5 dropped right in with some changes that I will note.
So after a lot of measuring and drawing up blue prints I made my prototype one. Then with this one I can make changes and then make those changes to final adapter. Here is the adapter with Mr Gasket Intake gasket material, gasket that was made at same time.
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Here is the adapter on the intake.
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Here is the adapter on the head.
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Car started and ran mint right off the bat. Was wondering if I should make more of these if people want newer engines in fusions if their 2.3 dies?
 
#31 ·
It's hard to tell from the pictures, but what is the size difference on the ports on either side vs your adapter plate? The holes look small, but I can't tell if it's my imagination or not.

Also, just an idea since you're able to create things like this.... what do you think about the idea of using the 2.5 manifold and creating an adapter plate for the TB instead?
 
#33 ·
I am interested in one of these plates. I will need it soon as my engine oil leak is significantly worse. It is up to 2 quarts per week and there are piles of oil all over the place now. I am parking the car until I can get it swapped. I am half tempted to try and replace the rear main seal on this engine, but have been reading all over the place about the failed attempts. That is a lot of labor to throw away. I have found 2.5 engines locally for reasonable prices with less than 100k on them, my 2.3 is over 191,000 miles already. I need to do something before school starts at the beginning of August.
 
#45 · (Edited)
Hi 2008Milan
I upgraded engines for the same reasons you posted, and used the info in this post to make it happen. Thanks.
Now I've changed to a 2.5L manifold with a 2.3L throttle Body, on a 2.3L to 2.5L engine swap.
I just posted a new thread "2.3L to 2.5L engine Swap using 2.5L manifold, 2.3L throttle body on 2006 Fusion."
If putting this reply here is inappropriate, feel free to remove it.
Thanks again
 
#46 ·
Hey guys I'd like to bring you my 2.3L TB to 2.5L intake adapter. From the ones that brought you the original plate that got many up and running when there was nothing else out there at the time. The main thing you guys might like is the PRICE. 50% off what others are charging. I will be selling this kit with all SS hardware for $75 BUT if you bought one of my original plates you can buy for $69 !!!!!!! To your door. I just ran off a dozen before I do the 100 part run. You can contact me at FTodaro716@aol.com
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#56 ·
Ok guys I just bought a 2008 Milan for cheap with dead 2.3. It ate the oil and they drove it with no/low oil and killed all the bearings in the engine. I wanted the newest cheapest car I could find and the replacement engine had to be cheap also. I did all the research and found out the 2.3 has a bit of problems and the used engines are priced high and they all have 100 plus K on them. The 2010 to 2012 2.5's have a better rep and you can score low mileage ones cheap.
The problem with the 2.5 is it has taller intake ports and matching intake that does not have the charge plates and other sensors on it like the older models like mine have. So like mentioned here you can't use the 10-12 intake. The older intake leaves a gap at top that needs to be sealed. So this is where I machined up the intake adapter plate and gasket. The 2.5 dropped right in with some changes that I will note.
So after a lot of measuring and drawing up blue prints I made my prototype one. Then with this one I can make changes and then make those changes to final adapter. Here is the adapter with Mr Gasket Intake gasket material, gasket that was made at same time.
Image

Here is the adapter on the intake.
Image

Here is the adapter on the head.
Image

Car started and ran mint right off the bat. Was wondering if I should make more of these if people want newer engines in fusions if their 2.3 dies?