where to find standard size piston rings for 1972 xs2

[jimmybrown78]

All,
I am having the hardest time finding 1970-1973 Standard piston rings. Mikes XS only has 1974-1983 will these work or should i find the 70-73 rings. If they wont work what sites sell rings other than mikes.

 

[650Skull]

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