There are a handful of great four-cylinder engines. The GM Iron Duke 150, Toyota 22R, AMC I4 and others come to mind. However, as a community of installers and aftermarket swap companies have to put their eggs into the baskets they do. We get occasional requests for these various installations and we recommend the installer going with good, standard solutions as much as possible. Additionally, as Jeeps continue to get larger and heavier, these motors do become less relevant.

As discussed elsewhere in the Novak Knowledge Base, most four-cylinders will disappoint in terms of power as well as economy.