Big Block Mopar bellhousing for the Reid Racing 2 piece Superglide and Super Hydra 400 cases fits 361-383-400-413-426-440 B and RB series engines including the 426 Hemi. Cast from high-strength aluminum and heat treated for additional toughness, the bellhousing passes the stringent SFI 30.1 certification* and is approved with no external shields required. The bell weighs only 13.0 pounds, features an open bottom for easy converter access, a reduced diameter for better floorboard clearance, and a contoured mounting flange to properly match the rear of the engine block. These bellhousings allow for direct fit to the engines with no spacers or adapters needed. Designed for use with a 130 tooth flexplate, stock style starters are used in the factory location. It will also accept the larger 168 tooth Chevy-style flexplate. Length is the same as the Chevy bellhousing.