{"product_id":"s-s-anillos-de-piston-de-3-5-8-diametro-020-para-harley-davidson","title":"S\u0026amp;S 3-5\/8\" Bore +.020\" Piston Rings for Harley Davidson","description":"S\u0026amp;S Chrome\/Molybdenum Replacement Piston Ring Set.  \u003cbr data-mce-fragment=\"1\"\u003eFits all Evolution and pre-Evolution engines that are equipped with an S\u0026amp;S 3-5\/8\" Big Bore kit that has 1\/16\" (1.5mm) compression rings and 5\/32\" (4.2mm) oil rings. Fits other manufacturers' 3-5\/8\" Big Bore kits (such as some Axtell kits), which are equipped with the same piston grooves.\u003cbr data-mce-fragment=\"1\"\u003e Standard cylinder bore: 3.625\" (92.075 mm). 1st ring: 1.5 mm (0.058\"). 2nd ring: 1.5 mm (0.058\").\u003cbr data-mce-fragment=\"1\"\u003e Oil ring: 4.2 mm (0.155\").\u003cbr data-mce-fragment=\"1\"\u003e Note the compression ring gap: It is very important to determine the correct ring gap on newly installed piston rings.\u003cbr data-mce-fragment=\"1\"\u003e Too tight a gap can result in premature piston ring\/cylinder wall wear or even seizure, possibly breaking the rings and\/or damaging the pistons and\/or cylinder walls, etc.  \u003cbr data-mce-fragment=\"1\"\u003eA piston ring gap that is wider than necessary will result in unnecessary compression loss and reduced engine efficiency.\u003cbr data-mce-fragment=\"1\"\u003e The recommended ring gap is 0.004\" per inch of cylinder bore for street engines.\u003cbr data-mce-fragment=\"1\"\u003e For a 3-5\/8\" (3.625\") bore, the engine piston ring gap would be 3.625\" x 0.004\" = 0.0145\". (0.0145\" x 25.4 = 0.3683 mm or, when rounded, 0.37 mm).\u003cbr data-mce-fragment=\"1\"\u003e Information provided by S\u0026amp;S Cycle, Inc.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e Fits: \u0026gt; Most S\u0026amp;S Evo and pre-Evo engines","brand":"S\u0026S","offers":[{"title":"Default Title","offer_id":40482200944725,"sku":"MC908669","price":86.24,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1606\/2595\/products\/908440k_cf08975f-0a34-4b46-be12-4f384075e3d1.jpg?v=1673886433","url":"https:\/\/california-motorcycles.com\/en\/products\/s-s-anillos-de-piston-de-3-5-8-diametro-020-para-harley-davidson","provider":"California Motorcycles","version":"1.0","type":"link"}