Engine
Asked by GCIMPROVEMENTSLLC Jul 25, 2019 at 05:52 PM about the 2003 Dodge RAM 2500 SLT Quad Cab LB 4WD
Question type: Maintenance & Repair
Can you easily install a 2007 dodge ram 2500 5.7L hemi
motor in a 2003 dodge ram 2500?
6 Answers
If the 2003 also had a 5.7, it is not that difficult. If it has any other size engine, there will be lots of things that need to be modified and/or replaced. Exhaust system, wiring for sensors, motor mounts, etc.
The 2003 ECU may not operate the newer engine correctly.
My 2003 has a 5.7L hemi motor and the 2007 has a 5.7L hemi motor so I could I just take the motor out of my 03 and put in the motor from the 07 without any modifications?
GCIMPROVEMENTSLLC answered 5 years ago
Gary; My 2003 has a 5.7L hemi motor and the 2007 has a 5.7L hemi motor so I could I just take the motor out of my 03 and put in the motor from the 07 without any modifications?
4 years means there were changes along the way. You won't find out about a lot of them until you discover the engine won't run but good luck.