{"product_id":"309-machine-hp661c-cnc-ported-cylinder-kit","title":"309 Machine HP661C CNC Ported Cylinder Kit","description":"\u003cp data-end=\"216\" data-start=\"48\"\u003eWake up your saw with precision CNC porting from 309 Machine. Our focus is simple: maximize power while maintaining the reliability and durability professionals expect.\u003c\/p\u003e\n\u003cp data-end=\"406\" data-start=\"218\"\u003eThe \u003cstrong data-end=\"232\" data-start=\"222\"\u003eHP661C\u003c\/strong\u003e Cylinder Kit represents the ideal balance of high performance and longevity, delivering \u003cstrong data-end=\"343\" data-start=\"308\"\u003eincreased torque and horsepower\u003c\/strong\u003e along with improved throttle response and cutting performance.\u003c\/p\u003e\n\u003cp data-end=\"427\" data-start=\"408\"\u003e\u003cstrong data-end=\"427\" data-start=\"408\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"619\" data-start=\"429\"\u003e• Brand new OEM Stihl Cylinder Kit\u003cbr data-end=\"466\" data-start=\"463\"\u003e     • Stihl Part Number 1144 020 1202\u003cbr data-end=\"502\" data-start=\"499\"\u003e     • OEM cylinder\u003cbr data-end=\"519\" data-start=\"516\"\u003e     • OEM piston\u003cbr data-end=\"534\" data-start=\"531\"\u003e     • Piston rings\u003cbr data-end=\"551\" data-start=\"548\"\u003e     • Piston Wrist Pin\u003cbr data-end=\"566\" data-start=\"563\"\u003e     • Circlips\u003cbr data-end=\"579\" data-start=\"576\"\u003e• 309 Machine Decomp Plug\u003c\/p\u003e\n\u003cp data-end=\"724\" data-start=\"621\"\u003e *Base gasket must be reused or replaced. Gaskets are sold separately. We recommend using a piston ring clamp set when installing a new cylinder.\u003c\/p\u003e\n\u003cp data-end=\"755\" data-start=\"726\"\u003e\u003cstrong data-end=\"755\" data-start=\"726\"\u003ePerformance Work Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"982\" data-start=\"757\"\u003e• CNC cylinder porting\u003cbr data-end=\"25\" data-start=\"22\"\u003e• Exhaust port enlargement, timing, and polishing\u003cbr data-end=\"77\" data-start=\"74\"\u003e• Intake port enlargement, timing, and texturing\u003cbr data-end=\"128\" data-start=\"125\"\u003e• Squish band machining for improved combustion efficiency\u003cbr data-end=\"189\" data-start=\"186\"\u003e• Base cut for increased compression\u003cbr data-end=\"228\" data-start=\"225\"\u003e• Transfer port timing adjustments and flow optimization\u003c\/p\u003e\n\u003cp data-end=\"1184\" data-start=\"1036\"\u003ePerfect for refreshing a tired saw or for those who want ported performance without long lead times. These units are \u003cstrong data-end=\"1183\" data-start=\"1153\"\u003ein stock and ready to ship\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"1302\" data-start=\"1186\"\u003eFor maximum performance, we recommend pairing this cylinder with a \u003cstrong data-end=\"1301\" data-start=\"1253\"\u003eperformance exhaust and high flow air filter\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"1315\" data-start=\"1304\"\u003e\u003cstrong data-end=\"1315\" data-start=\"1304\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"1350\" data-start=\"1317\"\u003e• Stihl MS661 C M\u003cbr data-end=\"1337\" data-start=\"1334\"\u003e• Stihl MS661\u003cstrong data-end=\"1363\" data-start=\"1352\"\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"309 Machine","offers":[{"title":"Default Title","offer_id":51772285747511,"sku":null,"price":715.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/4570\/2199\/files\/IMG_7979.jpg?v=1773337980","url":"https:\/\/undauntedmfg.com\/products\/309-machine-hp661c-cnc-ported-cylinder-kit","provider":"Undaunted Manufacturing","version":"1.0","type":"link"}