55.2-59 fan clearance issues

[iceman4]

Hi, Reset engine where it needs to be for ifs install and rack and pinion clearance. The rad. core support is currently in the v8 location and motor has a long water pump.. I now need 1 1/2 " more space between fan and rad to work properly. Looking for the best option to gain 1 1/2" of space. Go to a short water pump, or move core support to the 6 cyl. location? If moving core to 6cyl mounting location ,could my core support brackets be moved and shimmed to work ? Thoughts appreciated.