I hope some one can help me here, will an EF/EL fuel injection manifold adapt to a 3.9 head , if not will an EF/EL head adapt to a 3.9 block .
I want to improve the air flow on my 3.9.
Raddish

hi

i would say yes to both but there is a fair but of mucking around to get the broadband manifold to work properly.
is your ea cfi or mpfi????

if it is cfi you can put the mpfi manifold from eb or ed with noticeable results..
but i think you will have to change your ecu ..

i fitted 14inch sports aircleaner to cfi work alot better

The 4L head will bolt onto the EA block. NOt sure about the manifold i dont see why not