Abstract: To enable preventing interference between a honing machine and a journal wall, avoiding large-sizing of a cylinder block and tilting a front cylinder part so that the upper end is as low as possible in a vehicular V-type internal combustion engine wherein the front cylinder part arranged on the front side in a vehicular travel direction and a rear cylinder part arranged on the rear side in the vehicular travel direction are arranged so that they form an approximate V-shape. A front cylinder part is tilted so that the upper end is lower than that of a rear cylinder part and a bent part bent on the side distant from a central position is formed in a part corresponding to a front cylinder hole of a journal wall arranged on the side displaced from the central position between both journal walls of the front cylinder hole.