Questionable yard art or a second-rate jungle gym -- that’s basically what a Jeep is if the heart of the beast, the engine, won’t work. The fact is that engines wear out over time with use or abuse.

The first piece of engine-performance-improving equipment for a Jeep I ever saw was an aluminum cylinder head designed by Vic Hickey in the early '50s before I had a driver's license when I was just a ...

As the accompanying tables indicate, there are lots of mix-and-match possibilities for American Motors Corporation (AMC)—but there are also some subtile differences that can really bite you on the ...