{"product_id":"hastings-2-745-bore-piston-ring-set-std","title":"Hastings 2.745\" bore piston ring set - STD","description":"\u003cp\u003eComes with parkerized cast gray iron compression and oil rings. Used with early style 1929-1949 type pistons with the one-piece cast iron oil ring. \r\nStd cyl. bore: 2.745\" (69.72mm). \r\n1st ring: 2.3mm (3\/32). \r\n2nd ring: 2.3mm (3\/32'). \r\nOil ring: 3.2mm (1\/8\"). \r\n\r\nNote: OEM 1950-1973 pistons are equipped with 1\/16\" (1.6mm) 1st. \u0026amp; 2nd rings and late style 3\/16\" (4.75mm) 3-piece flex-vent style oil rings for improved oil control, for these Hastings rings see 1950-1973 Flathead model years. Above mentioned rings will not fit the 1950-1973 new type pistons. \r\nTech tip: Piston grooves vs piston rings. \r\nIt'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. \r\nTech tip: Piston oversizes. \r\nFor each oversize cylinder diameter will increase with .010\" (0.254mm). The standard bore of the cylinder is listed for reference. \r\n(Tech tip information provided by Hastings Manufacturing Company, Inc.)\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Piston rings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 11-2529\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hastings","offers":[{"title":"Default Title","offer_id":63352034230602,"sku":"MSH-946144","price":819.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0016\/9546\/files\/908440k_5ef9b099-fe11-4437-8328-6ea13edaf13a.jpg?v=1787786361","url":"https:\/\/partsdenmark.se\/products\/hastings-2-745-bore-piston-ring-set-std","provider":"Parts Denmark","version":"1.0","type":"link"}