5.4 3v swap into s197?

[CammedS197]

Anyone do this before?

Been thinking about it, But not sure if the aftermarket is big on it or what can be used from the 4.6 3v aftermarket.

 

[BruceH]

I considered it at one time. Ended up going with a Big Bore Boss instead. A 3v 5.4 isn't going to net you a whole lot. It will slow how fast the motor revs. It will allow for less air per volume into to the combustion chamber per stroke. It will give you a little more torque. It would shine with a turbo but that would necessitate a built motor.

You will need a F150 intake manifold and the exhaust will need some tweaking. Everything else should plug right in. I can't think of a good reason for it the effort involved but there aren't good reasons for most of what we do.

Is there a long range goal in mind or are you just thinking of economical ways to increase power? Maybe a little boredom mixed in with the above? I ask because I'm fairly certain that something along the lines of a DOB supercharger kit would be comparable in cost and give you a whole lot more power. That is if you are looking for suggestions.

If you decide to do it let us know how it works out and make a thread on the swap. It would be interesting.

 

[CammedS197]

Was just looking into for a possibility/seen if done and #'s. But will be doing do the DOB kit, seems like too much for very little. I also like the quicker rev. If it netted a good amount would have done it lol.

Thanks BruceH

 

[dream07]

A few people have done the 3V 5.4 swap, most were a long long time ago (Flapjack's, Kuro's etc). Many made videos on Youtube, search that too. The big issue is the intake manifold. The options are to stick with the very-restrictive long runner F150 intake or pay for a custom sheet metal manifold. In every case I can recall, they went with custom.

IMO, it isn't worth the trouble if you aren't going to modify the hell out of it (meaning, a stock F150 5.4 isn't going to out-perform a 4.6). The 4.6 is lighter and provides a lot of ways to make easy power. Swaps are easy in this chassis, but I always find a thing or 2 that need fabrication (intake, headers, etc).

 

[mrt2you]

DOB doesn't make a intake for a 5.4.
he says it would be easy for him to make one. but he needs 20 orders to make it worth it for him.
i myself wish he would make one. put his intake on a 5.8 alloy gt500 block. you would make really good power without spinning the motor 7000 rpm. the bottom end would be much better than a boss block.

 

[ford20]

Kuro! did a 5.4 swap on his V6 and made a pretty detailed thread about from what I remember, but that had to be like 4 or 5 years ago. There are plenty of threads if you search for them. Although I don't know why you would go from a 4.6 to a 5.4 3V. If you want the extra CI, just get a Big Bore block.

 

[stkjock]

Kuro! did a 5.4 swap on his V6 and made a pretty detailed thread about from what I remember, but that had to be like 4 or 5 years ago. There are plenty of threads if you search for them. Although I don't know why you would go from a 4.6 to a 5.4 3V. If you want the extra CI, just get a Big Bore block.

wasn't his swap to a 5.4L 4V?

 

[Mach2burnout]

wasn't his swap to a 5.4L 4V?

That was around 2012 iirc. But I thought he went LS. Maybe I'm thinking of someone else.


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[stkjock]

That was around 2012 iirc. But I thought he went LS. Maybe I'm thinking of someone else.

Nope, we are both wrong, it was a 5.4L 3V

http://s197forum.com/forum/showthread.php?t=41023&highlight=ENGINE+SWAP

 

[themoose06]

What about a coyote?


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[Mach2burnout]

What about a coyote?


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That's the way to go, but man it's such a pricey swap. Salvage engines haven't dropped a dime since the Coyote came out. And then there's all the details you have to do to make it work.


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[themoose06]

That's the way to go, but man it's such a pricey swap. Salvage engines haven't dropped a dime since the Coyote came out. And then there's all the details you have to do to make it work.


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Can't be much different from a 5.4, maybe get a donor for the swap. Leave you plenty of parts to sell and comp you for the price


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[Department Of Boost]

That's the way to go, but man it's such a pricey swap. Salvage engines haven't dropped a dime since the Coyote came out. And then there's all the details you have to do to make it work.


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It cracks me up how many people say "Coyote Swap!!!!" but when do you ever see it done? It's a PITA and expensive.

I think I can recall all the Yote swaps I have seen done on one hand.

 

[themoose06]

It cracks me up how many people say "Coyote Swap!!!!" but when do you ever see it done? It's a PITA and expensive.



I think I can recall all the Yote swaps I have seen done on one hand.

right, but it would leave op with many more aftermarket choices


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[stkjock]

right, but it would leave op with many more aftermarket choices

choices for what??

 

[themoose06]

choices for what??

to take the build further? isn't a 5.4 more limited in terms of aftermarket?


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[BruceH]

to take the build further? isn't a 5.4 more limited in terms of aftermarket?


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This is why sticking to a 4.6 and putting a DOB on it makes a whole lot more sense to most.

 

[stkjock]

to take the build further? isn't a 5.4 more limited in terms of aftermarket?


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Choices are only limited by budget

 

[themoose06]

Choices are only limited by budget

True. Guess it comes down to OP's wallet size and what kinda power he's looking for


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[Mach2burnout]

Can't be much different from a 5.4, maybe get a donor for the swap. Leave you plenty of parts to sell and comp you for the price


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Nah you can get a salvage 07-08 with a 5.4 for $3500-5000. Maybe cheaper with a little more mileage. Then it will sit right in and most electronics will connect, Gauges work, etc.

Coyote on the other hand, even a high mileage donor, your looking at $7-8k plus a whole host of add'l expenses. Probably 15k total to finish and you've still just got a 400+ hp mustang. Just saying.

Check out Dillan at BMR. I believe he is in the middle of one right now, or just finished. He made have a build thread on here. Can't for the life of me remember is screen name on here.


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