{"product_id":"hastings-replacement-piston-rings-3","title":"Replacement Piston Rings","description":"\u003cp\u003ePiston Rings - 3.437\" +0.080\" - 74\" Big Twin\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes top compression rings, second compression rings, and oil control rings\u003c\/li\u003e\n\u003cli\u003eTop Compression Rings are Barrel Face\u003c\/li\u003e\n\u003cli\u003eHelps in the the heat transfer process between the piston and cylinder wall\u003c\/li\u003e\n\u003cli\u003eControls combustion chamber gases allowing the piston to transfer the energy of the expanding combustion gases, to the crankshaft\u003c\/li\u003e\n\u003cli\u003eSecond Compression Ring are Reverse Torsional Taper Face\u003c\/li\u003e\n\u003cli\u003ePromotes side sealing that prevents oil from being forced under and behind the ring resulting in better oil economy\u003c\/li\u003e\n\u003cli\u003eReverse twist ring along with a taper-machined ring face duplicates the OD bottom side scraping edge of a positive twist torsional ring\u003c\/li\u003e\n\u003cli\u003eOil Control Rings are Three Piece Flex Vent\u003c\/li\u003e\n\u003cli\u003eThree-piece design allows rails to be manufactured with a small cross sectional area for better conformability to bore\u003c\/li\u003e\n\u003cli\u003eProvides uniform pressure through four steel rails and two expanders assuring positive oil control\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eDue to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with piston for correct ring installation.\u003c\/li\u003e\n\u003cli\u003eIncludes enough rings for two pistons (unless noted).\u003c\/li\u003e\n\u003cli\u003eTwo rings per groove, except for the rails that will be two rail rings per one expander ring.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HASTINGS","offers":[{"title":"Default Title","offer_id":53131471520111,"sku":"0912-0925","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/0323\/6463\/files\/9DFA4BDF-DB9C-42BE-ABA6-1F732CF75598.png?v=1781907608","url":"https:\/\/factory47.com\/products\/hastings-replacement-piston-rings-3","provider":"Factory 47","version":"1.0","type":"link"}