AMC brought in their engines with the 1972 model year. The old Buick V6 installed from 66-72 made 160hp. It was said you could easily do a 4-wheel burnout with the V6 in your CJ5. The AMC inline sixes however, made about 4hp, which means the discos 47hp would be an upgrade.Heh, not the AMC version.
Yup, just avoid the 87-90 ones like the plague with special consideration to the 87-89 which had the marvelous (read: horrendous) Peugeot 5-speed which costs about 2500 bucks to rebuild.YJ with the 4.0L and 5-speed. I love the CJs, but the YJ in that configuration was tough as nails.