The Engines that people are swapping into the Jeeps, their histories, features, compatibilities and highlights.

Two popular quick links in this category include:
- The Novak Guide to GM Engine Conversions in Jeeps
- The Novak Guide to Ford Engine Conversions in Jeeps

The Transmissions are central to conversions. It is sometimes possible to keep your existing Jeep transmission with an engine upgrade, and it is sometimes possible to keep your Jeep engine with a transmission upgrade - but not always. It's good there are several choices available in manual and automatic shift versions. Study up...

Transfer Cases are what makes a "Jeep" a Jeep. Historically, Jeep transfer cases have been among the best, and most choose to retain them when upgrading their powertrain.

The Principles of Cooling are important to your engine, and also your automatic transmission.

Clutch Release Systems can be easy to set up, or can stymie the project - usually based on how much the installer knows. Get a fast education here with our popular Guide to Clutches, Linkages & Bellhousings.

Jeep Gearing choices are critical. This collection of gearing calculators will help you choose transmission, transfer case, axle gears and tire sizes that will allow your Jeep to be rowdy on the trail or efficient on road - and perhaps both.

Jeeps that are converted with good engines and transmission have been getting better Fuel Economy for decades. Well, it's a hot topic now...

The challenge of being awash in information, is the proportional increase in misinformation. Cut through the noise, and read Myths vs. Observations.

Jeep Driveshaft tech is important to any Jeep; lifted, converted, etc.

Emissions Laws & Regulations aren't much of a hindrance to a good swap. In fact, your Jeep will probably burn cleaner with a good, modern engine in its bay.

The first article in this new series is a list of recommendations and sources for companies that specialize in wiring and PCM reprogramming.