Speedway Motors' SoloSwap Big Block Chevy Mock Up Engine Swap Dummy Block Kits weigh in at 23 lbs. for the short block or 39 lbs. for the long block, and are compatible with all BBC engine bolt-ons, including intake manifolds, headers, and oil pans. Each mock up engine can be lifted from a vehicle with only one person and replicates all Mk IV, Gen V, and Gen VI BBC engines. Featuring a 12-gauge steel construction, the dummy block kit is durable and fits short or long water pumps.