From the place you bought them from originally if you did, FIT are the only ones i know of who make 1.97, on their site they mention a brand name they use, try that way. Thats why i tell people, for a cheaper price, with YT you get brand new roller rockers plus the push rods. I really couldnt understand the logic.
Anyways, Crow cams should be able to help you out as well, or someone else on here may have part numbers, but the rods must be unique to 1.97 ratio length and thickness wise.
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