Hello I have a 94 3.9l v6. I'm looking 4 info on motor compatibility like 8th digit vin blank will fit 8th digit whatever. From straight 3.9 swaps up to 5.9 or info on where to look. Links n stuff. Also granny swap info would be awesome.

 

Any magnum V-8 will bolt right in, some wiring needs to be added for the additional two injectors though. 98 and up will need a 97 and older intake, as the newer ones don't have the provision for the second temp sensor the older trucks have.

 

What about 3.9s

 

Anything 92 or newer.

 

Awesome. What the deal with 8th digit vin numbers?

 

Engine code.

 

Thanks a bunch