Is type of injection the only difference between the magnum 3.9 and old 3.9?
If so, could I convert my 1990 3.9 over to throttle port just by switching manifolds and computers?

 

what years are the engines? you should be able to look on the block and see, itll say v6 on the side, probably on the passenger side of the block, then the month and year. I found out the hard way that you cant just drop a 94 in a 89, had to swap heads out plus intake manifold.

 

go to allpar.com, they have a big write up on the difference between LA and Magnum engines. It helped me alot!

 

thanks for all the help, i really appreciate it