Project Frankenstein: Dropping a 6.4L in my 2011 Overland (5.7L) - Anyone Done It Bef - Jeep Garage - Jeep Forum

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Old 05-22-2015, 08:06 AM
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Project Frankenstein: Dropping a 6.4L in my 2011 Overland (5.7L) - Anyone Done It Bef

JG Community,

Hi everyone. Been a while since I have posted but this board was instrumental to my initial modifications to my 2011 Overland (5.7L) back in 2012/2013. So first off, thank you.

Well - 125,000 miles later (this is my DD) I ended up with some bad news and through breaking a cam and I have several options - the best of which I decided was to retrofit with a brand new engine from Chrysler and the 100,000 power train warranty that comes with it.

While talking with the mechanic, I brought up the idea of dropping the 6.4L in instead of my old sluggish 5.7 and he said it was doable but that Mopar doesn't sell a direct "performance pack" that would include the wiring harness, exhaust, etc that I'd need so we both agreed to do some research and come to an answer Tuesday. Turns out the price of the 6.4L engine over the 5.7L is marginal - I just need to know what associated costs would come with that.

So I bring my conundrum to the JG gods to help me enjoy my jeep even more and make the 6.4 (WITH A FACTORY WARRANTY) work in my beloved Jeep. Does anyone know who (if anybody) sells the performance parts needed for this conversion in a "kit"?!?

If not - what would I need to source to make this work? From my understanding the wiring harness and exhaust have to be swapped. Anything else?!? Thanks guys and I plan on sharing the process with the board.

Andrew

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  #2  
Old 05-22-2015, 08:42 AM
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Re: Project Frankenstein: Dropping a 6.4L in my 2011 Overland (5.7L) - Anyone Done It

I'm very, very doubtful you're going to find any kind of "kit" for this modification!

But it does sound like a very interesting project.

And, of course, you always do have the option of picking up a new-to-you SRT already put together.
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Old 05-22-2015, 09:16 AM
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Re: Project Frankenstein: Dropping a 6.4L in my 2011 Overland (5.7L) - Anyone Done It

I could be wrong here but, I believe it wouldn't be just the wiring but the entire computer system that needs to be swapped out as well.
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Old 05-22-2015, 09:29 AM
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Re: Project Frankenstein: Dropping a 6.4L in my 2011 Overland (5.7L) - Anyone Done It

Okay, so I'll go a bit more in-depth to explain my rationale behind the proposed project.

I am a sales professional (medical) so I drive...A LOT. On avg. 30K-40K miles a year which means I'm a professional at running vehicles into the ground - It's a consequence of the job. It's also why my 2011 has 125K miles on it in 4 years.

That being said, here's the work I have done on her to date:
2011 Overland w/ Brembo's and Plenty More...

Basically I retrofitted Brembos, Slotted/drilled rotors, a CAI, sharkfin, LED, etc. I also own her free and clear and I like not having a car payment - which brings me to my current situation:

====
====

Since the engine is trashed I have several options:

Option A: Have the stealership put the oil pan back on and drive her until she won't drive anymore. (Cheapest option but not very smart).

Option B: Have the stealership put the oil pan back on and trade her into an unsuspecting dealer and come out of pocket at least 20K for a newer Jeep (most likely still used for same quality level) and hope they don't catch the engine knocking before accepting the trade and give me the 20K'ish that KBB says it's worth. (My ethics and values system won't let me do this).

Option C: Have them replace the broken engine parts at about a 4K cost with no warranty on what they fixed.

Option D: Have them drop in a new 5.7L Hemi w/ a factory Chrysler 100K powertrain warranty at a cost of $9100.

Option E: Since I'm already leaning toward the 9K new engine, why not get a factory 100K powertrain warranty and a much more fun vehicle to drive with a "stealth" 6.4L and still enjoy my truck for another 100-150K miles before turning it into the family "3rd/Backup Vehicle"?

====
====

Since those are my options - now you can see why I'm leaning toward Option E if we can make it work without spending TOO MUCH more. So - if no one makes a package to do this - who can help me figure out what all components we would need to replace to make this work?

Thanks in advance to everyone for your help - this should be fun!

Andrew
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Old 05-22-2015, 10:13 AM
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Re: Project Frankenstein: Dropping a 6.4L in my 2011 Overland (5.7L) - Anyone Done It

Take a look at bpeusa.com i think they can help you.
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Old 05-22-2015, 12:26 PM
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A sales professional with ethics that won't let you do Option B? I've never met one like you before! (Kidding, I think.) I wouldn't be able to do that either. And not because I would feel like I was screwing over the dealer, but because I would feel like I was screwing over the next owner.

I can't answer your question. The people who would best be able to answer, work at Jeep. I would try to talk to them or, if you remotely trust your dealer, have them ask about it. They have better avenues to find things out than we do.
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Old 05-22-2015, 01:06 PM
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Re: Project Frankenstein: Dropping a 6.4L in my 2011 Overland (5.7L) - Anyone Done It

So I just got off the phone with the guys who run Bouchillon Performance (www.BPEUSA.com) - thanks CherryRedJeep and after talking sh!t for about 10 minutes about which state is better for automobiles (I'm in Detroit, MI and they're in SC) they basically said that they believe it's pretty straightforward other than tuning the PCM and a new exhaust that's SRT compatible. Should be about 15'ish to 20 hours of labor as well.

Great guys btw and I wish they were local as MOPAR seems to be their wheelhouse. Now I need to figure out what SRT exhaust to combine with this beast and how to pull it all off and walk away with a new 100K powertrain warranty from Chrysler. (Because that's the ultimate win here is that I get an additional 100K warranty out of them even if it costs me a couple extra bucks on the install). Today's turning into an interesting day and always looking for more feedback. Thanks for everything so far guys.

Andrew
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Old 05-22-2015, 01:19 PM
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Re: Project Frankenstein: Dropping a 6.4L in my 2011 Overland (5.7L) - Anyone Done It

Pretty sure ur factory warranty on the 6.4l will be void the second you put it in your overland. Just food for thought...


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Old 05-22-2015, 01:25 PM
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Re: Project Frankenstein: Dropping a 6.4L in my 2011 Overland (5.7L) - Anyone Done It

Well the dealer is doing the work and is saying that it would be covered by the warranty and believe me - I will get it in writing if/when I pull the trigger . It'd be a deal breaker otherwise...
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Old 05-22-2015, 01:52 PM
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Re: Project Frankenstein: Dropping a 6.4L in my 2011 Overland (5.7L) - Anyone Done It

Yes, if any tuning is done, be sure you're covered. Usually if the factory tune is unlocked, the power train warranty is over.
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Old 05-22-2015, 02:45 PM
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Re: Project Frankenstein: Dropping a 6.4L in my 2011 Overland (5.7L) - Anyone Done It

Andrew,In Mi. try monicattichrysler.com 248-439-0261 they show a 6.4 crate engine for 7150.00 there in royal oak,mi.
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Old 05-22-2015, 05:42 PM
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Re: Project Frankenstein: Dropping a 6.4L in my 2011 Overland (5.7L) - Anyone Done It

Quote:
Originally Posted by LuckyDog View Post
Well the dealer is doing the work and is saying that it would be covered by the warranty and believe me - I will get it in writing if/when I pull the trigger . It'd be a deal breaker otherwise...

The warranty is not up to the dealer it is up to FCA so whatever would be in writing would be useless. Ur playing with fire even thinking of this idea just get an srt and be done with it.



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