The Jeep® 4.6L stroker inline six is a popular buildup spurred by ready parts availability and the relatively minor work involved. Time for rebuilding a 1987-2006 inline 4.0L is the usual starting point. In this video, Moses Ludel discusses the merits and "why" adding a 4.2L or Scat aftermarket crankshaft to a 4.0L block makes sense.

There are tuning (mainly an injector upgrade) and other details involved with these buildups although the outward appearance of the engine remains bone stock. For a roster of related articles, review the search list at: https://www.4wdmechanix.com/?s=4.6L+s.... In these articles, pay particular attention to camshaft choices, tuning measures and the differences between pre- and post-Coil-On-Plug engines (starting with some 1999 models and running through the final 2006 model year). The C-O-P engines require specific camshaft grinds. The wrong camshaft pick will throw an engine check code or cause drivability issues.

The 1991-1999 (distributor equipped) engines are the easiest build, but do not rule out this stroker approach with Renix or C-O-P engines. Discussion around the 4.6L stroker build has moved to the forums. Join us there and search for "4.6L" at: https://forums.4WDmechanix.com.