Engine Replacement

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cjkalt

Junior Member
Joined
Feb 25, 2019
Posts
4
Reaction score
2
Location
Vernon
Ram Year
2017
Engine
5.7 Hemi
Engine replacement, anything need to be done with the ecu, flash, have to take to a dealer, anything that will make it more than a weekend project?TIA
 

Wild one

Senior Member
Joined
Jan 17, 2016
Posts
23,632
Reaction score
54,265
Ram Year
14 Sport
Engine
5.7
Engine replacement, anything need to be done with the ecu, flash, have to take to a dealer, anything that will make it more than a weekend project?TIA
Helps if you provide more info,are you sticking a new crate engine in it,or a long block assembly,and who's engine,is it a new Mopar crate engine,a junkyard engine etc.
 
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cjkalt

Junior Member
Joined
Feb 25, 2019
Posts
4
Reaction score
2
Location
Vernon
Ram Year
2017
Engine
5.7 Hemi
My truck is a 2015 Ram 1500, with a 5.7l Hemi. I found an engine out of a 2020 wrecked Ram 1500 with 25,000 miles on it. So the vin match the 8th letter and the both have 5.7l Heim in them. I understand that there will be gaskets, bolts, fluids, and other odds and ends that will need to replace. I’m more looking for is there anything needed for the ECU, or can I just swap the motor out and if all worked correctly on the transplant motor, will be able to start and run correctly.
TIA
 

Wild one

Senior Member
Joined
Jan 17, 2016
Posts
23,632
Reaction score
54,265
Ram Year
14 Sport
Engine
5.7
My truck is a 2015 Ram 1500, with a 5.7l Hemi. I found an engine out of a 2020 wrecked Ram 1500 with 25,000 miles on it. So the vin match the 8th letter and the both have 5.7l Heim in them. I understand that there will be gaskets, bolts, fluids, and other odds and ends that will need to replace. I’m more looking for is there anything needed for the ECU, or can I just swap the motor out and if all worked correctly on the transplant motor, will be able to start and run correctly.
TIA
If you use your original sensors from your old engine,it's a plug-n-play swap,as long are both 8 speeds,if your truck still happens to have the 6 speed,you'll have to swap the pilot bushing in the end of the crankshaft
 

Curmudgeon

Senior Member
Supporting Member
Joined
Jul 22, 2017
Posts
1,522
Reaction score
4,644
Location
York, Pennsylvania
Ram Year
2014 1500 Laramie 4x4 QC, 3.21 rear, 8-speed
Engine
5.7L Hemi
My truck is a 2015 Ram 1500, with a 5.7l Hemi. I found an engine out of a 2020 wrecked Ram 1500 with 25,000 miles on it. So the vin match the 8th letter and the both have 5.7l Heim in them. I understand that there will be gaskets, bolts, fluids, and other odds and ends that will need to replace. I’m more looking for is there anything needed for the ECU, or can I just swap the motor out and if all worked correctly on the transplant motor, will be able to start and run correctly.
TIA

Hold on now.
Was this Ram white?
Did it come from Louisiana?
Did it have "JHoward" etched on one of the valve covers? :eek:

EDIT: He had a 2017. So, nevermind.
 
Last edited:
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