Generally speaking, any ring for a d-series 1.6L should work. Check with Eagle at
www.eaglespecialtyparts.com, they have it listed. You'll have to call them to order just a set of rings, but they're not much more expensive than stock honda ones, if i remember right. I can help you out with internal parts if you want to do a complete piston/rod/ring/pin setup, just let me know.