Black_Dog wrote:
Jeep supposedly torture tested the 3.7L beyond what is expected of standard engines for operating in the extremes of temperature, in mud and underwater.
When Jeep released the new Wrangler with the Chrysler 3.8L, they made no such claims. I’m not saying that the 3.8L is a bad engine for running about town but I am skeptical of its ability to withstand the long-term pounding that hardcore Jeep owners will inflict upon it.
If you look at the sales figures, Chrysler minivans have been tanking in recent years.
the 3.8L has been torture tested by soccer moms all around north america, Jeep didn't need to make that claim because this engine has already powered everything from my grandma's 88 Dynasty to god knows what else.
Also, all minivan sales have been slow...not just ChryCo's.
My 3.7L has done less than impress me in terms of power, fuel efficiency, and overall NVH. it idles like my old 304 that had ported heads and a pretty big cam (maybe I'm exaggerating a bit there...). Granted, it probably doesn't help that I came from two 5.0 Fords (Exploder and T-bird) in the power department, because my biggest complaint is lack of bottom-end.
At any rate...if I had a choice, I'd take the 3.8L in the KJ over the 3.7...but I don't like it enough to go out of my way to swap one in...but in my opinion, the 3.7L is the unknown factor for abuse, with its pressed-on cam lobes and powdered metal connecting rods, NOT the pushrod 3.8.