The Ford Modular engine is Ford’s V8 & V10 gasoline powered engine family. Ever since the first 4.6 Ford engine was introduced, Promar has been remanufacturing and improving on their design. Exceptional quality, attention to detail and great customer service have made Promar’s remanufactured 5.4 Ford engine the best built engine in the industry. With over a two decades of experience with the 4.6 & 5.4 L engines, Promar was ready to make the infamous “3 valve” 5.4 L engine their new specialty when it was introduced in 2004. This new 24-valve engine was put in many of Ford’s most popular vehicles. Our Ford 5.4 3 valve engines are built to meet or exceed the original OEM specifications and come with a 3-year/unlimited mileage warranty. Promar installs a new high volume Melling oil pump and line bores all cam journals in every cylinder head to ensure proper oil pressure is supplied to our brand new OEM camshaft phasers. Promar Precision Engine Rebuilders does not build their engines on an assembly line. We have 1 highly trained technician build your engine from start to finish. These are just a few of the reasons why Promar’s remanufactured engines are the best way to extend the life of your vehicle for a great price.