Abstract: A mobile cement block production plant. The plant is comprised of a mobile block producing station mounted on the bed of a vehicle and a mobile block curing station, independently movable with respect to the block producing station, with the curing station comprised of a trailer having a bed, and mounted on the trailer bed are at least two block curing kilns for steam curing of blocks, each of the kilns being capable of independent function with respect to the other, and each of the kilns having an associated extendible canopy which may be extended from kilns toward the block producing station so that blocks may be continuously manufactured and cured, a canopy from one extendible station being used for steam curing of blocks while block previously steam cured in the other may be loaded.