Engine swap
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3rd Gear
Joined: Jun 2026
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Engine swap
I bought a 2000 F-350 as a project. The V-10 engine was bad, I was aware of that when I bought it. I have come to the realization that I do not want to replace the V-10 as I don't have any confidence in this engine. Does anyone know if the 5.4 V-8 will bolt directly to the existing transmission or will I need a conversion/adaptor? Any and all help is greatly appreciated!!!
I just signed up on this forum under the "FREE" signup. If this forum is as helpful as I've been told I will sign up for a better membership! Thanks in advance!!
I just signed up on this forum under the "FREE" signup. If this forum is as helpful as I've been told I will sign up for a better membership! Thanks in advance!!
Fleet Mechanic
Joined: Mar 2023
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I bought a 2000 F-350 as a project. The V-10 engine was bad, I was aware of that when I bought it. I have come to the realization that I do not want to replace the V-10 as I don't have any confidence in this engine. Does anyone know if the 5.4 V-8 will bolt directly to the existing transmission or will I need a conversion/adaptor? Any and all help is greatly appreciated!!!
I just signed up on this forum under the "FREE" signup. If this forum is as helpful as I've been told I will sign up for a better membership! Thanks in advance!!
I just signed up on this forum under the "FREE" signup. If this forum is as helpful as I've been told I will sign up for a better membership! Thanks in advance!!
If you absolutely hate the v10 and must swap a V8 into it,,,then maybe a Chevy LS or an old school Ford Windsor (like a 302 or 351) might be a better option.
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Last edited by Antonm23; Today at 12:56 PM. Reason: spelling and grammar
Logistics Pro
Joined: Jan 2010
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^^^ This.
The 5.4 is a good engine as long as you take care of it, deal with the cam phasers, and have the issues with the spark plugs dealt with. Same goes for the V10, though with its higher torque it is actually more desirable than the 5.4.
They are VERY similar engines, as pointed out above - they're called 'modular' engines for a reason, the only real differences are the casting lengths, cams, and cranks. Even the castings for the heads/block are made by adding another section to the mold to get the V10.
If you don't like the V10, you won't like the V8, and I agree that a different swap might be what you're after. Depending on the level of tech you want in it, you could go for an LS swap, an old Windsor, or a 460. I don't know if anyone's done it yet, but you may even want to look at a 5.0 Coyote.
The 5.4 is a good engine as long as you take care of it, deal with the cam phasers, and have the issues with the spark plugs dealt with. Same goes for the V10, though with its higher torque it is actually more desirable than the 5.4.
They are VERY similar engines, as pointed out above - they're called 'modular' engines for a reason, the only real differences are the casting lengths, cams, and cranks. Even the castings for the heads/block are made by adding another section to the mold to get the V10.
If you don't like the V10, you won't like the V8, and I agree that a different swap might be what you're after. Depending on the level of tech you want in it, you could go for an LS swap, an old Windsor, or a 460. I don't know if anyone's done it yet, but you may even want to look at a 5.0 Coyote.
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3rd Gear
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The V10 and V8 engines are very similar in architecture and even share many common internal components (like the pistons and connecting rods are the same between both engines). If you "don't have and confidence" in the V10, then you should also not have any confidence in the V8's either.
If you absolutely hate the v10 and must swap a V8 into it,,,then maybe a Chevy LS or an old school Ford Windsor (like a 302 or 351) might be a better option.
...
If you absolutely hate the v10 and must swap a V8 into it,,,then maybe a Chevy LS or an old school Ford Windsor (like a 302 or 351) might be a better option.
...
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