Since the 1990s, the Ford 4.6-liter has become a modern-day V-8 phenomenon, powering everything from Mustangs to hand-built hot rods. Its innovative design delivers exceptional power, modification potential, and reliability. This popular engine has created an industry unto itself with a huge supply of aftermarket high-performance parts, machine services, and accessories. As these engines age and are in need of a rebuild, or are considered for aftermarket performance modification, owners need a hands-on step-by-step rebuilding manual. 4.6L & 5.4L Ford Engines: How to Rebuild expertly explains each rebuilding phase for these engines, providing crucial step-by-step information and instruction. This book delivers the complete nuts-and-bolts rebuild story so you can rebuild an engine at home and achieve professional results. In addition, it contains a complete history of the engine family as well as essential block, head, and component ID information, and a thorough explanation of Romeo and Windsor component differences for selecting the right parts. With detailed photos and comprehensive captions, each step is expertly detailed in disassembly, machine work, assembly, start-up, break-in, and tuning for all 4.6- and 5.4-liter engines, including the two- and three-valve SOHC and the four-valve DOHC versions. Also included is a chapter on the exciting new Coyote engines, their design and philosophy. If you are a Modular Ford engine fan, this book is an invaluable resource.