A method for manufacturing a body of a disc brake caliper, said body comprising side portions (16a, 16b) adapted to be arranged along opposite sides of the disc of the disc brake relative to an axial direction of the same disc and at least one connecting portion (18a, 18b) connecting the side portions (16a, 16b) along said axial direction, wherein said side portions (16a, 16b) comprise a first cylinder and a second cylinder, respectively, of at least one pair of opposite cylinders being connected to each other by means of a connecting canalization extending through the at least one connecting portion (18a, 18b), said method comprising the steps of: - providing a mould for cast manufacturing the body of the caliper by casting a material into the mould; - providing at least one core for cast manufacturing a body of a disc brake caliper comprising two areas adapted to provide two opposite notches corresponding to two cylinders (20a, 20b) of a pair of opposite cylinders of the body being connected to each other by means of said connecting canalization, the at least one core further comprising two projections being opposite to each other adapted to provide a side length (24a, 24b) of the connecting canalization between the opposite cylinders; - inserting said at least one core into said mould; - casting a material into the mould in order to simultaneously providing said notches corresponding to said cylinders (20a, 20b) of the pair of opposite cylinders and said side lengths (24a, 24b) of the connecting canalization extending between this cylinder and the connecting portion (18a, 18b) of the body; - machine tool-drilling of one single connecting length of the connecting canalization provided subsequently to the step of casting the body, for connecting to each other the two side lengths (24a and 24b) of the connecting canalization which extend between each cylinder of the pair of opposite cylinders and the body connecting portion in order to make the connecting canalization complete. - providing a mould for cast manufacturing the body of the caliper by casting a material into the mould; - providing at least one core for cast manufacturing a body of a disc brake caliper comprising two areas adapted to provide two opposite notches corresponding to two cylinders (20a, 20b) of a pair of opposite cylinders of the body being connected to each other by means of said connecting canalization, the at least one core further comprising two projections being opposite to each other adapted to provide a side length (24a, 24b) of the connecting canalization between the opposite cylinders; - inserting said at least one core into said mould; - casting a material into the mould in order to simultaneously providing said notches corresponding to said cylinders (20a, 20b) of the pair of opposite cylinders and said side lengths (24a, 24b) of the connecting canalization extending between this cylinder and the connecting portion (18a, 18b) of the body; - machine tool-drilling of one single connecting length of the connecting canalization provided subsequently to the step of casting the body, for connecting to each other the two side lengths (24a and 24b) of the connecting canalization which extend between each cylinder of the pair of opposite cylinders and the body connecting portion in order to make the connecting canalization complete.