{"product_id":"ls9-cnc-ported-cylinder-head-assembly","title":"LS9 CNC-Ported Cylinder Head Assembly","description":"The Chevrolet Performance LS9 CNC-Ported Cylinder Head Assembly is engineered to significantly boost airflow and performance for LS engines. This assembly is a CNC-ported version of the renowned LS9 cylinder head, designed to deliver approximately 10% more flow than the stock head. It achieves this with substantial intake runners at 276cc and exhaust ports at 92cc, paired with large 2.165-inch intake valves and 1.590-inch exhaust valves. The head is constructed from durable cast aluminum and features D-shaped exhaust ports for optimal scavenging.","brand":"Chevrolet Performance","offers":[{"title":"Default Title","offer_id":52663968563512,"sku":"19433498","price":1253.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687140489.jpg?v=1784331353","url":"https:\/\/store.motormia.co\/products\/ls9-cnc-ported-cylinder-head-assembly","provider":"MOTORMIA","version":"1.0","type":"link"}