Swap in 6.5 in CUCV??? - Steel Soldiers::Military Vehicles Supersite

andytk5 · 07-21-2010, 22:22

I have searched as much as I could to find the info and also not make a double thread if somebody already has.

Seems like the 6.5 already makes more power than the 6.2 and I have seen a few go up for sale on the Gov Liq site for pretty cheap. From the reading I have done the 6.5 gets into the 205hp~ range but more importantly it is around 440ft-lbs~ which is what I am more focused on, add in the 4.56s and this thing will be awesome for the boat which I tow to the ramp up to about 40mph...

My question is the turbo versions I see are HMMV version, center mount turbo that would need to be moved over to the side like the sidewinder kit. So need the different pass side header, fab up some tubing with a bender and welder to run the exhaust and the intakes. Wouldn't you basically just be moving the turbo and possibly changing the intake (maybe?) and probably the oil pan, but other than that???

Am I about right on the hp/tq maybe they were 190hp and 400~tq, but turning up the 6.5 to a little more than 200hp to boost the torque is fairly easy from what I have read, and perf parts are plentiful. Not trying to build a monster but would liike the 440-450tq area with that drivetrain.

Any thoughts?
Thanks!

Westech · 07-21-2010, 22:27

you will need the turbo and exhaust manifold off a Civy 6.5 turbo. The 6.5 center mount turbo will not work in a cucv as you stated. the best thing to do is just swap a 6.5 turbo on to your 6.2 and bump the fuel just a tad. you will be very close to the power of a 6.5

Recovry4x4 · 07-21-2010, 22:59

You would also need to replace the heads. The intake bolts are at a completely different angle for the center mount turbo.

andytk5 · 07-21-2010, 23:11

AH... So now we enter the P.I.T.A. territory, seems to be getting more $$$ and more time involved.. better to find a used 6.5 turbo civvy somewhere. Unless I can find those heads cheap, then figuring what condition they are in...