Shaun Perry of AED Tuning explores the limits of the stock Ford Coyote engine block for high-performance builds. He highlights that while the factory connecting rods and forged crankshaft are robust—capable of handling 1,200 and 1,500 horsepower respectively—the primary concern is the block itself. The standard Gen 1, 2, and 3 Coyote blocks, made from 319 low-pressure cast aluminum, are rigid but prone to cracking if flexed. Perry notes that the design of factory motor mounts can distort the block under heavy load, recommending a midplate for builds aiming for 1,000 wheel horsepower or more.

The 5.2L Predator block, found in the Shelby GT500, features improvements like a closed-deck design, but maintains the same rigid aluminum composition and also benefits from a lighter construction due to modern cylinder liners. Perry still recommends reinforcement for high-power applications.

For those seeking durability, the aftermarket Bear Block Motors option utilizes A356 aluminum, allowing it to endure extreme horsepower without cracking. This block has tested successfully at 1,600 horsepower without requiring a midplate, making it suitable for high-horsepower setups. Ultimately, Perry emphasizes that the choice of block depends on individual power goals and vehicle use, while also noting alternatives like the Ford Performance Werewolf iron block for those prioritizing strength.



Source: www.dragzine.com