Those original rims for sale won’t fit a disc brake conversion. It may with a larger spacer, but I have no experience with that. Also the spacer that comes in a CPP kit is only 3/16” wide so any wider spacer would require new longer wheel studs.
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum