How-to Build a Multipurpose Jeep 4.6L Stroker Motor

Q&A Vlog: How-to Build a Multipurpose Jeep 4.6L Stroker Motor

In this HD video vlog Q&A, Moses Ludel discusses the Jeep 4.0L inline six build-up into a stroker 4.6L engine. The build consists of the right design, correct choice of parts and the required machining. Moses Ludel describes the engine parts and machining options and the range of costs. Moses Ludel targets utility, drivability and maximum fuel efficiency, holding the compression ratio to 8.7:1.

See the detailed 4.6L HD video coverage and Tony Hewes interviews at the “4WD Tech ‘How-to’ Channel” playlist!

4.0L cylinder headed rebuilt thoroughly for use with 4.6L stroker build
Outward appearance of 4.0L and 4.6L Jeep inline six is identical.

More details on the Jeep inline six cylinder engines…available exclusively at 4WD Mechanix Magazine and HD Video Network:

1) 1964 Jeep CJ-5: A Vintage Stroker Inline Six Swap, an historical article on the swap of a vintage Nash/Rambler engine into a pre-AMC era Jeep CJ-5.

2) Jeep CJ Inline Six Stroker Rebuild includes an historical overview of AMC seven-main bearing inline six-cylinder engines.

3) YJ & TJ Jeep Stroker Six Upgrade with insights into the Jeep stroker six builds.

4) For building a stroker motor to the specifications Moses Ludel describes, see the 6-part HD video interview series with Tony Hewes of Hewes Performance Machine.

5) Vlog page with list of parts and machining for a quality 4.6L stroker motor build at Tony Hewes’ Hewes Performance Machine.

6) How-to: Tuning the Fuel Injected Jeep Inline Six Stroker Motor, insights into some of the changes necessary. Also see the #5 vlog (above) for fuel injector recommendations.

7) How-to: Tuning the Carbureted Jeep Inline Six Stroker Motor, comments on use of a stroker six with carburetion in a 1972-86 Jeep CJ or early YJ Wrangler 4.2L model.

8) Jeep Multi-Point Injection: Operation and Troubleshooting, an overview of tuning and troubleshooting measures for use of Chrysler OEM MPI found on 4.0L inline six-cylinder engines.

9) How-to: Oil Filtration for 4.0L and Stroker Inline Six Build-ups, oil filtration and by-pass needs of various Jeep inline six-cylinder engine types. Modifications and matching parts for a stroker engine build.

10) How-to: Fuel-and-Spark Modifications for the Jeep 4.6L Stroker Inline Six, additional tuning recommendations that accompany a stroker six build-up.

For Jeep use, the real success story with the 4.6L stroker six is the torque output and torque curve. Torque rises far more quickly than a stock 4.0L and should exceed peak 4.0L torque by at least 50 ft-lbs! Most of the torque comes in by 2,000 rpm, and this improves the real world driving feel and trail crawl performance. Torque continues to climb to a peak in the 300-340 ft-lbs range by 3,200 rpm—depending upon the build.