Yes,i know, "OMG it isnt a V8". This truck has suited me fine as my DD and I'm loving the MPG as well,but here is my question. IS there anything I can do other than an engine swap to get more power out of it. Ive looked around a few places...JCWhitney etc, but it seems that no one really carries anything for a 3.9 motor. Does anybody own/worked on a 3.9 and has modded it out any,if so any comments/advice is taken with gratitude.

 

you could start with the plenum

 

Don't buy internal engine parts from JCWhitney. They are the Wall-Mart of auto parts. (if that good.....)

Basically, make sure everything is up to snuff, including the plenum..... If you end up doing your plenum, might consider doing the kegger mod as well. That will net you a little bit of power. Freer flowing air cleaner too....

Some exhaust work wouldn't hurt, if the sixes are the same as the eights, the y pipe is rather restrictive...... might pick up a bit there.

Not sure if anyone makes cams for the six.......

Supercharger?

 

about every bolt on that a v8 can

tb
14x3 and cold air intake
fix the plenum
good tune up
1.7 roller rockers
under dive pully
e-fan
exhaust, high flow, muffler, headers

maybe a sct tune, bepends on year and if .... get a hold of hemifever

back in the day there was a guy on there with a superchaged v6