It depends, Are the bores stock or first over? If stock you can use the stock rings with stock pistons. If first over you need the first over pistons and you will need first over rings.
The stock bore is about 75.010 to 72.016. At least in the engines I've torn down. The first over bore is 75.25. Rings have a certain amount of end gap. This is the gap between the ends of the rings when installed. the top two rings gap is .2 mm(.008 inch) minimum, .031(.8 mm) maximum, for the 70-77, the 78 up the maximum was changed to .040 (1.0 mm)
This applies to stock as well as oversizes. If you try using standard rings with the first over the gap will be too wide. Take the bore size times pi to find circumference of both sizes then subtract the standard from the oversize. Pi being 3.14.
75.010 x 3.14 = 235.5314, 75.25 x 3.14 = 236.285
236.285 - 235.5314 = .7536
So the end gap will increase by .7536
This would make the gap .7536 + .2 = .9523 mm to .7536 + .8 = 1.536 mm. The tension of the rings against the bore will be greatly reduced by a gap this large. Between the huge gap and very little pressure of the ring on the cylinders you will get tremendous blow by of compression prfessure past the rings.
What I might do is measure your bores to determine if stock pistons can be used or you need the first over. My guess is that they are there then you need the bore. If you need the bore you need the rings.
If you don't have the tools or skills needed to accurately measure the bore sizes take them to a machine shop. Most won't charge much. If they do the machining they may do it for free.
Leo