There are pieces of junk but the 258 AMC engine sure isn't. Used in Jeeps until just a few years ago. It has a 12 port head which is way better than the Chevy/GMC engines. Have also used 225 Chrysler and 240/300 Ford engines in Chevy's for the same reason IF mods were on the menu. In stock factory form the old Stovebolt six is hard to beat. Now we stay with Chevy with the introduction of the Atlas(4.2/4200) OHC six. Pretty peppy stock and a real tire smoker with a turbo. There a two distinct camps on old cars/trucks; the "Put them back exactly like factory" and "Lets change everything". Were fortunate to have a forum that accommodates both.
