Engine swap on 2006 1500 mega cab from 5.7 hemi

[joshuaedmister]

I have the 2006 1500 mega cab so I know everything is designed to be the 2500 frame, axles, etc, but I was wondering what all engines could be swapped with or without transmission both, I would like to go bigger than the 5.7 hemi and have more power, possibly diesel even, accepting all input, my engine is blown for those wondering, 98k on it and was trying to get some sleep in between shifts at work when I only had about 3 hours in-between and it overheated while I was sleeping in the ac

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[Fast69Mopar]

The only engine you will be able to use will be a 2003-2008 5.7 HEMI. This is the only motor that will be compatible with your 545RFE transmission.

If you want to switch to the 5.9 Cummins, you will need a donor truck to get the ECM, engine wiring harness, radiator, condenser, intercooler, long block with injectors, fuel lines, fuel filter housing, in-tank lift pump, TIPM, and so many other things.

Stick with the 5.7 HEMI. They can make excellent horsepower and torque with very few modifications and still be very reliable.

 

[joshuaedmister]

The only engine you will be able to use will be a 2003-2008 5.7 HEMI. This is the only motor that will be compatible with your 545RFE transmission.

If you want to switch to the 5.9 Cummins, you will need a donor truck to get the ECM, engine wiring harness, radiator, condenser, intercooler, long block with injectors, fuel lines, fuel filter housing, in-tank lift pump, TIPM, and so many other things.

Stick with the 5.7 HEMI. They can make excellent horsepower and torque with very few modifications and still be very reliable.

Okay, I know many will scream at the thought, but I do have an 07 1 ton Duramax truck, needs all new lines for everything but trans and cooling I can steal everything off of

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[HemiLonestar]

Okay, I know many will scream at the thought, but I do have an 07 1 ton Duramax truck, needs all new lines for everything but trans and cooling I can steal everything off of

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If you don't want any electronics to work or have it function like a normal reliable truck lol. Another option is take your block if it isn't scrap and have a stroker kit installed. Depending on the one you choose and the condition of your block and bores, you can go anywhere from a 370 to a 410 on a 5.7 block; as most of this is stroke, it will increase low to mid grunt with the proper cam and tuning. Trick here is to set it up right but not go overboard as that RFE as that RFE may not last too long behind it if you abuse it.

 

[HemiLonestar]

You could also get a 6.1 block and run it as is or stroke it, but you'd have to dress it up like a 5.7 (accessory drive, oil pan, etc) to fit correctly. You can stroke a 6.1 all the way out to a 440 (I wouldn't recommend it personally) but then you run into 1. trying to find one & 2. the same transmission weakness problem when too much power is put to it. I would go with the first suggestion.

 

[joshuaedmister]

Shop said there's lower end damage, it had no antifreeze, normally I'd look at it but I'm working 80 hour weeks 2 hours from home lol

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[joshuaedmister]

Okay guys, can someone give me the rating specs on the t-case? Was curious how much power I could get before it rips itself in half

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[HemiLonestar]

Stock trans (545RFE) will self destruct long before the transfer case does

 

[joshuaedmister]

Stock trans (545RFE) will self destruct long before the transfer case does

Would it handle 370 hp and 660 tq?

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[HemiLonestar]

Would it handle 370 hp and 660 tq?

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LMAO....the trans or transfer case? Hell bent on ruining that Dodge with a Duramax, aintcha lol?

 

[joshuaedmister]

LMAO....the trans or transfer case? Hell bent on ruining that Dodge with a Duramax, aintcha lol?

Lol hell yeah, t-case, I like how the Duramaxes run, going to make a toy with a 12valve sometime though for sure though, so once it's started it's not stopping till I shut it off

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[HemiLonestar]

LOL at any rate, you'll need to look up the one you have to see what it's strength rating is. You'd probably be better off keeping the one that's attached to the Allison and rigging custom driveshafts.

 

[joshuaedmister]

LOL at any rate, you'll need to look up the one you have to see what it's strength rating is. You'd probably be better off keeping the one that's attached to the Allison and rigging custom driveshafts.

The Allison is on a 2wd lol, so there will be a little work there

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[HemiLonestar]

The Allison is on a 2wd lol, so there will be a little work there

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Not much, they were available on 4x4's, you just need the t-case adapter for it and/or a t-case that'll bolt to it.
Cheap and easy part: https://www.ebay.com/itm/4WD-GM-TRA...=2738937620706ecf8df8d5ac421cb9b28253843807ce
Harder part: https://www.ebay.com/itm/2007-UP-MP...777939&hash=item364def194c:g:lzcAAOSwmgJY3XXA

 

[joshuaedmister]

Not much, they were available on 4x4's, you just need the t-case adapter for it and/or a t-case that'll bolt to it.
Cheap and easy part: https://www.ebay.com/itm/4WD-GM-TRA...=2738937620706ecf8df8d5ac421cb9b28253843807ce
Harder part: https://www.ebay.com/itm/2007-UP-MP...777939&hash=item364def194c:g:lzcAAOSwmgJY3XXA

Both came up as missing links, were they the adapter plates on the end of the trans?

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[HemiLonestar]

******* google, let's try this again
https://www.ebay.com/p/GM-Allison-L...Case-Adapter/655973366?_trksid=p2047675.l2644
https://www.ebay.com/itm/2007-UP-MP...777939&hash=item364def194c:g:lzcAAOSwmgJY3XXA

 

[joshuaedmister]

******* google, let's try this again
https://www.ebay.com/p/GM-Allison-L...Case-Adapter/655973366?_trksid=p2047675.l2644
https://www.ebay.com/itm/2007-UP-MP...777939&hash=item364def194c:g:lzcAAOSwmgJY3XXA

That worked that time thanks

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[joshuaedmister]

******* google, let's try this again
https://www.ebay.com/p/GM-Allison-L...Case-Adapter/655973366?_trksid=p2047675.l2644
https://www.ebay.com/itm/2007-UP-MP...777939&hash=item364def194c:g:lzcAAOSwmgJY3XXA

Probably will do t-case and might do rear axle with it, I was told the speed sensors read the same signals

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[joshuaedmister]

******* google, let's try this again
https://www.ebay.com/p/GM-Allison-L...Case-Adapter/655973366?_trksid=p2047675.l2644
https://www.ebay.com/itm/2007-UP-MP...777939&hash=item364def194c:g:lzcAAOSwmgJY3XXA

Probably will do t-case and might do rear axle with it, I was told the speed sensors read the same signals

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[madtrucker2016]

your truck will never run good to much to change and lots of cash better off with the 5.7 and call it a day like you said your at work and its in the parking lot 80 hours a week save your self a headache