What's the difference between a 4.0 and a 4.0 high output?

 

One has low output and one had high output

 

one is the old renix design, the other is the chrysler updated 4.0 they labeled "H.O."

 

I think 40 HP

 

BS, the old renix was a hell of a motor.

 

So I got a ****ty one? .... Now I'm pissed

 

LOL, no... the renix put out 177 in stock form, the HO made 190, both more than the V8's at the time. The HO has the chrysler computer system, updated cylinder head, manifolds and cam, all by chrysler. The renix was the old AMC design, with the renix computer, before chrysler started messing with it. They're both good motors. IMHO opinion the renix was more reliable though, even though an H.O. still can't be killed. And regardless of the numbers... my wife's 89 XJ got up every bit as much if not more than my 97. Just saying, the renix was not a "low output" motor

 

Wow honestly thanks for the education , I love learning especially about jeeeepps!

 

The Renix is the 'better' of the two, just a tad less power. However getting that extra power is very possible.

 

Knock on wood my renix has never died and left my stranded.

 

So how much torque does each of them have?