{"product_id":"cool-head-shell-billet-aluminum-cylinder-head","title":"Cool Head Shell Billet Aluminum Cylinder Head","description":"The Pro Design Cool Head Shell is a performance-focused replacement cylinder head engineered for the 1987-2006 Yamaha YFZ350 Banshee.\n\nThis unit features an interchangeable O-ringed dome design, which allows enthusiasts to customize their compression ratios to match specific fuel types, elevations, ignition timing requirements, or performance goals. It is specifically built to work with 19cc, 20cc, 21cc, and 22cc Pro Design cooling domes, providing versatility for various engine builds.\n\nInstallation of this head shell serves as a direct replacement for the stock Banshee head. Because it utilizes O-ring seals, it eliminates the need for traditional gaskets in the combustion chamber area. This part is intended for 1987-2006 Yamaha YFZ350 Banshee models; ensure that the selected dome size is appropriate for your specific engine configuration and fuel grade to prevent detonation or performance loss.","brand":"Pro Design","offers":[{"title":"Default Title","offer_id":52663365337400,"sku":"PD300-YH","price":61.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687529839.png?v=1784326275","url":"https:\/\/store.motormia.co\/products\/cool-head-shell-billet-aluminum-cylinder-head","provider":"MOTORMIA","version":"1.0","type":"link"}