A centrifugal angular advance device for internal combustion engines is provided with a pair of weights and an advance plate engaged with the pair of weights for provision of an angular advance. Each of the pair of weights comprises a blank or integrated blanks and a drive pin secured to the blank or integrated blanks for driving the advance plate. The blank or integrated blanks is hardened after a bushing having no effect on the hardening has been provided in the hole of the blank or integrated blanks for the drive pin. The bushing is precisely finished by reaming with a reamer, then the drive pin is press-fitted into the bushing. Thus the weight is completed.