{"product_id":"ls1-ls6-243-799-cnc-ported-cylinder-heads","title":"LS1\/LS6 243\/799 CNC Ported Cylinder Heads","description":"The Chevrolet LS1\/LS6 CNC Ported 243\/799 Heads are a performance upgrade for 5.7L (350ci) V8 engines manufactured between 1997 and 2004. These heads have undergone CNC porting on a 5-axis Rottler CNC machine to enhance airflow and boost performance. They are equipped with .650 dual springs, new retainers, spring seats, and valve seals, along with 2.02-inch intake valves and 1.59-inch exhaust valves. The intake ports measure 243cc, the exhaust ports are 95cc, and the combustion chambers range from 66-68cc.\n\nThese high-performance heads are designed for those looking to supercharge their LS1 or LS6 engine. They are meticulously crafted to exceed OEM specifications, ensuring top-notch quality and performance. The CNC porting process is ideal for enthusiasts seeking improved airflow, increased power, and overall enhancement for their LS1 or LS6 engine. Experience the outstanding value and precision engineering that makes these heads a top choice for performance applications.","brand":"Chevrolet","offers":[{"title":"Default Title","offer_id":52687369732408,"sku":"AHP-65056PC","price":1495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660192159.webp?v=1784883360","url":"https:\/\/store.motormia.co\/products\/ls1-ls6-243-799-cnc-ported-cylinder-heads","provider":"MOTORMIA","version":"1.0","type":"link"}