I bought my daughter a 2005 magnum.
The motor (3.5L) went south in it with the cooling issues that this motor is notorious for. Still can not understand why they would put these aluminum motors in anything.
I want to know how hard is it to upgrade to a magnum v8 or a hemi v8 in this vehicle.

 

Come on nobody knows about this. Surly somebody has swapped out a motor on these things.

 

I just replaced with a 3.5 crate motor. Im at 3600 miles now, and only issue was the egr rubber gasket in bk of intake to be replaced. It was a 3day job, only thing i reused was timing cover and valve cover. My camshaft sensor went out an caused external timoing belt to go. I dyno'd it an have 385hp now with no upgrades but crate motor.

 

issue i had,with coolamt was the gurggling noise, replaced the resivor cap and that fixed it, $20 cap

 

I was going to do the swap, but new computer, trans, rearend, i didnt have the funds too. I dropped $3700 on motor and came up to be $5 k by the end