MMR Pro Mod 351XR / 5.8 Liter Alloy Block (BARE BLOCK) Similar to 2013 GT500 but fully rebuildable due to steel sleeves, finished to 3.700 bore size which make 5.8 liters with std 5.4 Liter stock stroke crankshaft. Rated by MMR up to 3100HP
* Same as used by team MMR and hold the current world record for fastest Modular EVER!
* Accepts both internal and external oil pumps
* Accepts factory starter
* Direct replacement for any originally equipped 5.4 Car/Truck including Ford GT supercar (cast Iron or alloy)