Dart Engine - Little M - Bare Block - 4.125 in Bore - 9.325 in Deck - 400 Main - 4-Bolt Main - 2-Piece Seal - 0.391 in Raised Cam Location - Iron - Small Block Chevy - Each-31182225--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO