{"product_id":"2-ring-sets-77-50mm-020-over-fits-kohler-ch20-ch22-99-p3cd-gj2w","title":"2 Ring Sets 77.50mm .020 Over Fits Kohler CH20 CH22","description":"\u003cp\u003eTwo 77.50mm .020 oversize ring sets with a 1.5mm top compression ring, a second ring and a three-piece oil ring, for both cylinders of the Kohler 77mm, 624cc twin-cylinder engines. Pistons and gaskets are not included. They fit the CH18, CH20, CH22, CH620, CH621, CH640 and CH641 and the CV18, CV20, CV22, CV620, CV624 and CV640; some CH22, CH620 and CH640 engines are the 80mm, 674cc version, so check the displacement on the nameplate. They are for a cylinder bored .020 over to 77.50mm with .020 oversize pistons; standard rings will not seal an oversize bore. Rings will not seal a scored, glazed or out-of-round bore, so measure taper and out of round, hone lightly for a crosshatch, and check the end gap of each ring in its bore.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTWO RING SETS - Two 77.50mm .020 oversize ring sets with a 1.5mm top compression ring, a second ring and a three-piece oil ring, for both cylinders of a twin. Pistons and gaskets are not included.\u003c\/li\u003e\n\u003cli\u003e1.5MM TOP RING - The 77mm engines use a 1.5mm top ring, so there is no ring style to check on this family.\u003c\/li\u003e\n\u003cli\u003eFITS KOHLER 77MM, 624CC TWINS - CH18, CH20, CH22, CH620, CH621, CH640, CH641, CV18, CV20, CV22, CV620, CV624 and CV640. Some CH22, CH620 and CH640 engines are the 80mm, 674cc version, so check the displacement on the nameplate.\u003c\/li\u003e\n\u003cli\u003e.020 OVERSIZE, 77.50mm - For a cylinder bored .020 over and fitted with .020 oversize pistons. Standard rings will not seal an oversize bore.\u003c\/li\u003e\n\u003cli\u003eCHECK THE BORE FIRST - Rings will not seal a scored, glazed or out-of-round bore. Measure taper and out of round, hone lightly for a crosshatch, and check the end gap of each ring in the bore it will run in.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lil Red Barn","offers":[{"title":"Default Title","offer_id":68009605333146,"sku":"99-P3CD-GJ2W","price":69.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/2346\/6909\/files\/61JR0CbMSYL.jpg?v=1793382487","url":"https:\/\/performancesawsupply.com\/products\/2-ring-sets-77-50mm-020-over-fits-kohler-ch20-ch22-99-p3cd-gj2w","provider":"Performance Saw Supply","version":"1.0","type":"link"}