ok i have a 87 3.9 in my dokota and i just rebuild the top end and i didn't do the piston ring becuase i thought it was smoking becuase of the value seals but it not. i replaced those and it still smoking. so i am looking for a v8 instead of my v6 becuase i am better off just puting a bigger motor in it in stead of rebuilding a the v6 again. so my ? is were can i get a v8 at. i live in nh and i don't have that much money. i am looking for a 360 or a 318 but it got to have ac hook up's because my truck has ac. if u can help me that would be good. thank u for ur time