{"product_id":"koso-north-america-4-valves-cylinder-head-27-5822","title":"Koso North America 4 Valves Cylinder Head 27-5822","description":"Koso North America 4 Valves Cylinder Head 27-5822\u003cp\u003e\u003cbr\u003e4 Valves Cylinder Head\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\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\u003cp\u003e\u003cbr\u003eMPN\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Koso North America","offers":[{"title":"Default Title","offer_id":46625477656761,"sku":"FHSJ_27-5822","price":999.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0775\/0179\/2441\/files\/koso-north-america-engine-default-title-koso-north-america-4-valves-cylinder-head-27-5822-31871572934841.jpg?v=1784754570","url":"https:\/\/www.thespeedshopusa.com\/products\/koso-north-america-4-valves-cylinder-head-27-5822","provider":"THE SPEED SHOP USA","version":"1.0","type":"link"}