It's an unfortunate mistake people sometimes miss. We all start somewhere. Not only that, but Chrysler was terrible with machining tolerances such as deck heights too tall, which adds to the dilemma. I won't build a stone stock 318 without making SURE the lifter preload is correct. It's pretty critical, IMO. These engines ran hundreds of thousands of miles likely needing the preload corrected and even rocker shafts relocated......but that was in stock form with weak stock valve springs. Once you start a performance oriented build, all of that changes.
