Mopar Performance and World Products pulled their resources to create refined 426 Hemi and 440 Wedge engine blocks. The blocks accommodate all OE components and feature improved oiling to the rockers from the galleys. Built for punishment with .600" decks and cross-bolted first four nodular main caps, these blocks are clearanced for a 4.750" crank with an external oil line. Mopar Casting number P5153843.