GeorgeM355
Junior Member
- Joined
- Jul 18, 2021
- Posts
- 1
- Reaction score
- 0
- Location
- Elizabethtown, Kentucky
- Ram Year
- 2002
- Engine
- 4.7L
I have a 2002 Ram with a blown 4.7L engine, it is the JTEC design.
I have recently picked up another 4.7L engine that came out of a 2003 Ram. I am assuming to it's NGC but I didn't get a look at the PCM.
My game plan is to rebuild the 2003 engine and put it in my 2002 Ram.
Here's the information I have gathered from the internet, if you see some bad information let me know:
The 2002 the Dodge Ram was built JTEC early production and late production 2002 was built NGC.
The tone ring on the crankshaft is different.
JTEC = 16 tooth
NGC = 32 tooth
The reluctor ring on the passenger side cam has a different window pattern.
The PCM plug count is different:
JTEC = 3 plugs
NGC = 4 plugs
Are there any other compatibility issues I need to be concerned about besides the timing set?
I have recently picked up another 4.7L engine that came out of a 2003 Ram. I am assuming to it's NGC but I didn't get a look at the PCM.
My game plan is to rebuild the 2003 engine and put it in my 2002 Ram.
Here's the information I have gathered from the internet, if you see some bad information let me know:
The 2002 the Dodge Ram was built JTEC early production and late production 2002 was built NGC.
The tone ring on the crankshaft is different.
JTEC = 16 tooth
NGC = 32 tooth
The reluctor ring on the passenger side cam has a different window pattern.
The PCM plug count is different:
JTEC = 3 plugs
NGC = 4 plugs
Are there any other compatibility issues I need to be concerned about besides the timing set?