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Old 08-11-2008, 01:58 AM   #1
ExDementia's Avatar
Join Date: Jun 2008
Location: San Diego
Posts: 1,221
Late 70's early 80's CJ

Im looking to buy a new jeep, im getting sick of this 4 cyl.

Ive looked all kinds of specs on CJ's and i see that the AMC 304 made something like 200 in 1970, but then with emissions they slowly lost power till it hit like 120 or something in the 80's. Same deal with the 258, (as all of you probly know) so do the late 70's early 80's cj's have decent power? (my 4 cyl made 120 stock) I know they have more torque but im just wondering if its worth it to get a 4.2 or a 304 CJ, as opposed to going to a YJ or a TJ with a 4.0.

My mom had a 79 CJ5 and she said that it was really fast and that she could "scratch" in all 3 gears.

Also, im not expecting great gas mileage, but about what do you guys get with the 304/258 including lift and tires?

Noob questions i know but thank you for the help!

1991 XJ Cherokee, 4.0, AW4, NP-242, SYE
HP D30, Rusty's axle truss, Currie HD steering, diff. slider
C8.25, Powertrax locker
4.5" RE up front and Rough Country out back
33" BFG A/T's 15" soft 8's
Suspension seats, rock sliders, plated rear corner panels,
trimmed fenders, CB, exhaust, lights, remote locks and start, etc.
Past jeeps:97 TJ, 99 TJ

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Old 08-11-2008, 07:20 AM   #2
jpdocdave's Avatar
Join Date: Mar 2008
Location: beach park, il
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from the specs i've seen the 4.0 made more hp than the 304, can't remember about torque but i think the 4.0 was stronger all around.

the fuel injected 4.0 is a great way to go, strong and much more reliable than the older engines. but a v8 w side dump pipes sure looks and sounds cool
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