Mopar Small Block LA Eng-Rebuild: How to Rebuild

Learn to rebuild a Mopar LA-series small-block engine with this handy how-to guide.

The Mopar LA-series engine is a small-block V-8 that powered various Chrysler, Plymouth, and Dodge vehicles from 1964 to 1992. This engine replaced the A-series engine (“LA” stands for “Light A”) in most models, as the original A-series engine was phased out in 1967. Initially introduced with a displacement of 273 ci, the 318- and 340-ci (the performance version) engines arrived in 1967 and 1968, respectively. Eventually, the 340-ci engine grew to 360 ci and was tamed down as emissions became more of a concern. In 1992, Chrysler released the Magnum version of the LA-series engine as a 318-ci 5.2L powerplant to further address those emissions issues. The 360-ci engine became a 5.9L Magnum in 1993.

This book focuses exclusively on the rebuilding of the LA-series engine (pre-Magnum) from 1964 to 1992. Veteran author and former Chrysler engineer Larry Shepard walks you through the process of a complete engine rebuild using step-by-step instruction and more than 500 photos. The required tools and a thorough diagnosis to determine if the engine truly needs a rebuild are included. Disassembly, analysis, and inspection of which parts can be saved and which must be replaced, parts selection (OEM or aftermarket), machining, reassembly, and engine break-in are covered. All systems and parts are examined, including the block, cylinder heads, cams, valvetrain, rotating assembly, induction system, and exhaust.

If you are restoring a Dart, Valiant, Duster, Barracuda, or Dodge truck or you simply want to know how to rebuild this engine, Shepard guides you every step of the way.

Larry Shepard, a distinguished engineer, parts manager, and racing coordinator, has a deep history within Chrysler Corporation and Mopar Racing. He also has an in-depth knowledge of LA small-blocks. Shepard has authored more than a half dozen books, and his latest book, Jeep 4.0 Engines, won the Best of 2014 International Automotive Media Award. As a seasoned author and Mopar expert, he has written several high-performance Chrysler rebuild books.