Mopar???

[Doug Wilson]

Is an '82 Jeep CJ-7 (AMC) a MOPAR?? Is it appropriate to discuss one on this forum?? Thank you from Doug ....GOD BLESS AMERICA

[PRO]

Well seeing how you added the "GOD BLESS AMERICA" I think you should be allowed in,just remember though AMCs are adopted MOPARS!!! just kidding.......PRO....

[rumblefish360]

AMC's are OK buy me. If you have a question, let er rip. I'm not real cozy with them. I have done some work on them in the past. Not a whole lot though. Most of the tinkering was on a 360 AMC in a Grand Cherokee, '79. It was to pass emmisions as well. Still have the cam hanging around that never was installed.
Same basic ideas still hold from engine to engine.

[Doug Wilson]

I just got a bone-stock and cherry CJ7 - '82 with a 258-6, and I'm thinking about putting one of my 440s in it, backed up by the stock drive train. Not a "sidestep the clutch at 5500" type rig, just for a little more responsiveness. Whadday'all think??

[Doug Wilson]

I coul also put in a 360 or a 318.

[Doug Wilson]

that is "could"

[dusterbd]

saw this covered in a 4wd mag a few years back. they said it would be a very hard swap just due to the extra weight and length of the big block. i would highly recommend the 360. its lighter, shorter, and can make enough power to make rock crawling easy.

[69-383-CHRGR]

Stick with the 258.

The engine is bulletproof and torquey as hell.

There is a lot that you can do to a 258 to improve performance. Mopar Performace sells a fuel injection kit. If I'm not mistaken, there are also 4bbl manifolds and split headers for those engines.

The 258 was a perfect engine for that Jeep. It's got great torque characteristics for offroad driving, rock solid reliability, and a low enough weight that your front end won't sink into every mud and sand pit you encounter. I have owned both I-6 and V-8 bobtail Jeeps (one wrangler, a CJ-7 and a CJ-5) and I will tell you that the best offroad performace comes from the I-6.

Just my $.02

[goose]

If you decide to stick with the 258 but want a little more top-end power, you can put the 4-liter Jeep head on it, it's basically a bolt-on swap. You have to use the correct manifolds, I think the exhaust is the same but the intake has to be the 4-liter piece (or vice-versa). Go to

http://www.monsterslayer.com/jeep/40Head/40Head.htm

if you want to learn more about the swap. Also you could drop in an AMC 401, they just bolt right in using factory parts.