3.7 magnum swap to 5.7 L hemi

BKHoldings · Apr 23, 2016

Hello, first post on this wonderful website and my question to you fellow Ramateers is;
I plan on swapping out my 2003 3.7 Magnum L for an 03 Hemi 5.7 L.
My question is, will it bolt to the tranny and if so what do I need to assemble it?
I'm actually asking if it will be a clean swap.
Any advice given is appreciated
Thanks.

Lil_Ram · Apr 23, 2016

The tranny is the same but new harness is required for it

Sent from my iPhone using Tapatalk

BKHoldings · Apr 23, 2016

Fantastic,
So in order for me to swap that's all I need to buy?
What about the Computer parts?

ST-8 · Apr 23, 2016

I would get a 04 or perferably a 05 Hemi an wiring harness if I was doing the swap

BKHoldings · Apr 23, 2016

All I have is an 03 at the moment, and I get it for free.. I'm just trying to figure it all but everything is appealing.
For sure.

Want the least of hassles.
Did I mention my 3.7 ram is a manual 5 speed?

HemiLonestar · Apr 25, 2016

Bwahahaha are you sure you're up for this? Manual trans designed for a 3.7 may not hold up to even a stock 5.7. All the electronics are different, including PCM, electronic TB, etc.
It will not be a "clean swap".

3.7 magnum swap to 5.7 L hemi

BKHoldings

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Lil_Ram

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BKHoldings

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ST-8

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HemiLonestar

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