{"product_id":"koso-mc623000-4-valve-cylinder-head","title":"KOSO MC623000 4 Valve Cylinder Head","description":"The Koso 4V Head Kit is the ideal engine part to complete the Koso Honda Grom® Big Bore kit. Because of its unique 4 valve design, the air flow and performance are increased. This new designed head is the perfect addition for those who desire more power and torque.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eNot legal for use in California on pollution controlled vehicles, race use only in California - waiver available.\u003c\/li\u003e\n\u003cli\u003eRequires the use of Iridium spark plug\u003c\/li\u003e\n\u003cli\u003eThe 4 Valve Head Kit features a forged piston, stainless steel 24 mm intake valves and 20 mm exhaust valves. Only fits Koso 170cc big bore kit.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KOSO","offers":[{"title":"Default Title","offer_id":42867230245107,"sku":"90000041286","price":749.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/5021\/6691\/products\/koso-mc623000-4-valve-cylinder-head-526647.jpg?v=1655429973","url":"https:\/\/sxspowersports.com\/products\/koso-mc623000-4-valve-cylinder-head","provider":"sxspowersports","version":"1.0","type":"link"}