Kelley's Works in Progress

The AMC/Jeep I6 Power Manual



Since Swappology just got its own page, we thought we should do one for the Power Manual while we were about it. It's only fair, no?

So, here's a synopsis of (I hope) the first and most comprehensive book on performance mods for the AMC inline six. These could, by extension, be applied to other inline engines as well - but the main focus here is the 199/232/242/258 engines used in Jeeps. But, don't let that stop you from doing anything else.

This book, like our others, is also a "work in progress" - which is why we print and publish it ourselves. This allows us to maintain full creative control over the work and format, and to issue the book in a format which is amenable to updates and changes later (after all, we don't see any reason to make you buy a whole new book when we just added a chapter and fixed a few grammatical errors, right?) It - and other WiP books - comes in a three-ring binder to allow you to do just that - and to give you a place to put notes on your own projects as well.

Also, note that there are some computer data files that can be used with this book. They used to ship on CD with the book - but we decided to put them up in our JeepPower Yahoo! Group for free download to make things simpler all around. Grab the ones you want. They include camshaft profile data for every camshaft we've been able to find for the AMC inline six, some calculators written in MSExcel that we used to automate some maths (to save "mistakes borne of repetition,") and some baseline dyno simulations for the AMC six. All dyno sim files are (for now) in a format for/from Desktop Dyno 2000 - we'll add more sim formats as we accumulate programs. Keep an eye on the file listing from time to time - as we find more data, we generate more files - and they'll keep going up for distribution.

Granted, the principal focus of the Power Manual is on the last of the AMC sixes - the 242ci/4.0L, produced from 1987-2007. However, with all the commonality of parts among the AMC six family (199/232/242/252/258/282, including engines produced in Mexico,) it's possible to "mix and match" to get any of a number of displacements and desired performance levels - and we tell you how to do just that. Inspection sheets are also provided - so you can just copy the ones for the engine you're working on, and note all your measurements as you inspect the block. Nominal measurements are already on the sheets - all you need to do is compare what you find to what they should be, and then you know what machine work you'll want done.

So, what's in the book? Try this: