Engine Blocks, Ford Modular 4.6 & 5.4L
2017-8-3 · Ford used their services to provide engine blocks in the early years of the 4.6L DOHC 4V engine, till they had the casting capacities to due the job themselves. While Ford did a fairly good job, their standards, alloy content, accuracy of cast, tolerances, and overall strength and quality was not up to those set by the TEKSID company.