{"product_id":"hastings-3-5-16-piston-rings-std","title":"Hastings, 3-5\/16\" piston rings. STD","description":"\u003cp\u003e3-5\/16\" piston ring set with 3\/32\" (.09375\") gray iron parkerized compression and 3\/16\" (.186\") chromed 3-piece oil rings. Fits 37-48 74\" (1200cc) ''U'' model Flatheads and 48-52 61\" (1000cc) E; EL Panhead models.  Std bore: 3-5\/16\" (84.138mm).  1st ring: 2.38mm (3\/32\").  2nd ring: 2.38mm (3\/32\").  oil ring: 4.75mm (3\/16\").  Tech tip: Piston grooves vs piston rings.  It''s not difficult to determine if a Hastings piston ring set will fit a certain piston. You should measure the height of the piston groove in the piston itself. The 2 top grooves will be for compression rings; the lower groove will be for the oil ring. In most cases Hastings oil rings are of the low tension 3-piece flex vent type. Ring heights are listed for reference.  Tech tip: Piston oversizes.  For each oversize cylinder diameter will increase with .010\" (0.254mm). The standard bore of the cylinder is listed for reference.  (Tech tip information provided by Hastings Manufacturing Company; Inc.)\u003c\/p\u003e","brand":"Hastings","offers":[{"title":"Default Title","offer_id":52760747245896,"sku":"946470","price":34.9,"currency_code":"EUR","in_stock":true}],"url":"https:\/\/holydeath.com\/products\/hastings-3-5-16-piston-rings-std","provider":"Holy Death Motorcycle Co.","version":"1.0","type":"link"}