5.4L 3v replacement
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Joined: Jan 2022
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From: Central New York
5.4L 3v replacement
Hello everyone. I'm new to the page and finally need some help. I have a 2008 F250 5.4L 3V 4X4 auto with 272k on the counter. I really like this truck. It has a clean frame and drive train which is huge in Central NY where the salt is applied to the roads faster than they can mine it! I have taken care of a lot of the steering and suspension over the past year. I mount an 8' service body on it. I put a 9'2" Boss v-blade on the front. I did all of the maintenance. I replaced the manifolds a week ago. Now, I've had ignition issues off and on for a year. Got that all ironed out. Less than 2 miles after doing the manifolds, I dropped #5. Got home, 5 miles, and had dropped #7. Compression test says FUKT! Borescope confirms. What model years van I interchange? Can I use a 5.4 from a 150? I know that the wiring for the coils and injectors is different for some but I'm not concerned about that. I thought I read somewhere that a late production 04-10, maybe, F150 5.4 would work? Expedition? Anyway, what model years and models will interchange for me? And what about a V10 swap? I know where there is a 2008 complete truck available with a busted frame for a 1k. Would it be worth it? I'd have all the computers and wiring from the donor. Let me know, and thank you for your time!
5th Wheeling
Joined: Aug 2019
Posts: 35
Likes: 1
Hello everyone. I'm new to the page and finally need some help. I have a 2008 F250 5.4L 3V 4X4 auto with 272k on the counter. I really like this truck. It has a clean frame and drive train which is huge in Central NY where the salt is applied to the roads faster than they can mine it! I have taken care of a lot of the steering and suspension over the past year. I mount an 8' service body on it. I put a 9'2" Boss v-blade on the front. I did all of the maintenance. I replaced the manifolds a week ago. Now, I've had ignition issues off and on for a year. Got that all ironed out. Less than 2 miles after doing the manifolds, I dropped #5. Got home, 5 miles, and had dropped #7. Compression test says FUKT! Borescope confirms. What model years van I interchange? Can I use a 5.4 from a 150? I know that the wiring for the coils and injectors is different for some but I'm not concerned about that. I thought I read somewhere that a late production 04-10, maybe, F150 5.4 would work? Expedition? Anyway, what model years and models will interchange for me? And what about a V10 swap? I know where there is a 2008 complete truck available with a busted frame for a 1k. Would it be worth it? I'd have all the computers and wiring from the donor. Let me know, and thank you for your time!
5th Wheeling
Joined: Aug 2019
Posts: 35
Likes: 1
yes the engine will interchange with one redesign. Ford changed the head design in 2008 because of the spark plug issue. Which is good new no more 2 piece spark plug iirc. When you are doing the swap be mindful of your sensors I am 99% sure they are the same, it doesn’t hurt to check first. Don’t toss anything until it’s good and running and let us know how you make out 🫡
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