{"product_id":"lsx-ls7-cnc-ported-cylinder-head-assembly","title":"LSX-LS7 CNC-Ported Cylinder Head Assembly","description":"The Chevrolet Performance LSX-LS7 CNC-Ported Cylinder Head Assembly is engineered for maximum airflow and performance in LS engine applications. This assembly is fully CNC-ported, ensuring precise port geometry and optimal flow characteristics.\n\nKey features include a robust 6-bolt-per-cylinder bolt pattern for enhanced sealing and a dedicated LS7-style rectangle port design. It comes assembled with lightweight 2.200-inch titanium intake valves and 1.610-inch sodium-filled exhaust valves for improved durability and performance. The head utilizes stock LS7 valve guides compatible with 8mm valves and features a 12-degree valve angle. It is designed for a minimum 4.100-inch bore and 70cc \"as-cast\" combustion chambers.\n\nThis cylinder head assembly is built to handle significant lift, capable of supporting up to .650 inches with its included premium springs. It is designed to work with LS7 rocker arms and LS7 bolts for a complete, high-performance valvetrain. The intake ports offer impressive flow rates of 397 cfm at .700 inches of lift, with exhaust ports flowing 230 cfm at .700 inches of lift. The bare head part number is 19257879.","brand":"Chevrolet Performance","offers":[{"title":"Default Title","offer_id":52687375892792,"sku":"19419197","price":2901.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687892877.webp?v=1784883438","url":"https:\/\/store.motormia.co\/products\/lsx-ls7-cnc-ported-cylinder-head-assembly","provider":"MOTORMIA","version":"1.0","type":"link"}