{"product_id":"stage-2-5-cnc-ported-cylinder-head-service","title":"Stage 2.5 CNC Ported Cylinder Head Service","description":"The PRC Stage 2.5 CNC Porting Service offers a significant performance enhancement for your 4.8L or 5.3L engine's cathedral port cylinder heads. This comprehensive service includes disassembly, thorough cleaning, precise CNC porting, and custom CNC milling tailored to your engine's needs. It also features a CNC valve job, CNC engraving of PRC logos, reassembly, and pressure testing, all while incorporating aftermarket 2.02-inch intake and 1.57-inch exhaust stainless steel valves.\n\nThis service focuses on maximizing airflow and performance. The provided flow chart for the Stage 2.5 5.3L heads shows intake flow ranging from 147 cfm at 0.200\" lift up to 308 cfm at 0.600\" lift, with corresponding exhaust flow figures from 111 cfm to 223 cfm. PRC emphasizes that quality and performance are their highest priorities, aiming to provide a superior performing cylinder head porting service at a competitive price.\n\nCustomers have the option to upgrade their valve spring kits, with options available for .550\", .625\", .660\", and .750\" lift. If purchasing valve springs separately, customers can arrange for PRC to install them. It is crucial for customers to remove all cylinder head accessories, such as spark plugs, coolant plugs, and steam port blocks, before shipping their heads. Texas Speed and Performance is not liable for any lost parts during this process. This product is not legal for sale or use in the state of California.","brand":"PRC","offers":[{"title":"Default Title","offer_id":52663324836152,"sku":"199-5.32.5","price":1299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687528030.png?v=1784325959","url":"https:\/\/store.motormia.co\/products\/stage-2-5-cnc-ported-cylinder-head-service","provider":"MOTORMIA","version":"1.0","type":"link"}