225/60R14 tires on Dodge magnum rims fit Hornet

I am looking at a set of Mopar Magnum 500 rims with 225/60R14 tires on them.They are original rims from the sixties or seventies and the owner says they are 7 1/2 wide.Will there be any problems with tire  clearance?And any clearance problems with the rims with the hub or factory disc brakes on a 1973 Hornet Sportabout?Tires on the car now are 195/75R14.How much will the tire difference throw off the speedometer?Thanks for the input.

Mopar Magnums from the 60's and 70's are 14x6" wide. Should fit over discs no issues - will need spacers to run on drums. Just like the AMC ones, GM ones and small Ford ones.  I believe Ford got a run of 15x7 Magnums made for when the '71 Mustang came out. Unless they've been custom widened, bank on 14x6.

At the risk of sounding like a broken record, 225 section width is too wide for a 6" rim. For the extra perceived width, you're also inducing premature tire wear and upsetting the handling.  Really, there is no benefit to running a wide tire on a narrow rim.

I would suggest a 205/70/14 as not only is this size a virtual dead ringer for the old E70-14s, but they are the perfect width for a 6" rim and have a decent enough aspect ratio for both comfort and handling.

If you want to run wider tires, I'd suggest different rims.  205/70's won't rub at all, and keeping all four boots the same size means you can rotate them and maximize your mileage out of them.

I have a set of Mopar Magnums on one of my AMX's that has later model Hornet front disc brakes (not sure of the year, possibly 78). The hub nose diameter prevented the Magnums from going on easily. And after they were on and bolted down once, a problem to remove the rims from the front hubs! A little work on the OD of the hubs with a disc grinder gave me enough clearance to fit the Mopar wheels without binding. I wasn't too worried about a balance problem since the amount removed was comparatively small and near the center of the hub.