Here's some info on the rims. Hope this can help.
This is a great artical about the rims. Click this link.
http://www.oldsmobility.com/superstock.htm
Super Stock II
The SS II wheels were used first in 1968, with a size of 14 x 6 (option code N71). For 1968, all SS IIs for the Cutlass/442 were painted grey, or what some call argent. There were no tin or chrome bezels around the holes in the wheels; the raised area was painted silver. This was for 1968 only. They used the same centers as later SS II and SS III wheels with the bolt on center cap.
There are NO SSII/III wheels with a 5" on 5 pattern.
The 14 x 7's were only used from 1970 to 1972. This, of course, excludes the 1969 H/O which had 15x7s and the 1973(?) and later 15x7 wheels. There was also a 13" wheel offered as option code N66. Don't know what years.
These will work with disc brakes.
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Super Stock III
The Super Stock III wheels are exactly the same, 14 x 7, as the 1970-72 SS II wheels, except that they were painted the same color as the lower part of the car (option code N67 - chrome). Option N73 was the 13" variation in lower body color.
Both SS II and SS III came with chrome bezels around the five holes, and a 14" trim ring. They also have a hub center cap in the center of the wheel that has the Olds rocket symbol.
A chromed version of the Super Stock III wheels was offered from 1983-1988 and came in two sizes, 14 x 6 and 15 x 7. The 14" option code was N66 and N83 was the 15" option code. The N66 wheels were available on any RWD Cutlass from 1984-1988, except for the Hurst/Olds and 442. They had black painted insets and no pinstripe around the edge of the wheel. Center caps show a black background with the red rocket symbol in the middle. The N83 wheels came only with the high-performance Cutlasses (H/O, 442) from 1983-1987. The Hurst/Olds wheels had argent painted insets and a red pinstripe, whereas the 442 versions had gold painted insets and gold pinstripes. Also distinguishing the 442 wheels are the center caps, which read '442'. All wheels were of a two-piece design. They were chromed as separate pieces and then assembled by Motor Wheel; therefore, re-chroming of the wheels wouldn't be very practical.
There are NO SSII/III wheels with a 5" on 5 pattern.