J&K Engines is an industry-leading, Power Stroke and Navistar Diesel engine remanufacturing specialist serving customers throughout the U.S. and Canada. At J&K Engines, we stand for a lot more than just great customer service. We have the products to back it up. Here's just a sampling of the products and services we provide: Remanufactured Long and short blocks for the 2003-2007 6.0 Ford Power Stroke Remanufactured Long and Short blocks for the 2008-2010 6.4 Ford Power Stroke Correcting Ford Powerstroke problems with a replacement Powerstroke engine