PRC CNC Porting Service - Cathedral Port Heads (Customer Supplied Castings)

The price listed is for you sending your cathedral port cylinder heads (4.8/5.3, LS1, LS6, LS2, LQ4/9) to us for porting. Our stage 1 porting service will include the re-use of the stock vales.  Stage 2.5 will include aftermarket 2.02/1.57 stainless steel valves. We also offer valve spring upgrades.PRC CNC Porting/Machining Service Includes: Disassembly Deep Cleaning CNC Porting CNC Valve Job CNC Engraving of PRC Logos CNC Milling to Your Specs Reassembly Pressure Testing   Click Here to SEE why we build better heads! All Precision Race Components (PRC) cylinder heads come fully CNC-ported and machined using state-of-the-art technology. With all PRC cylinder heads, quality and performance are our two highest priorities! In addition to this, you will not find a better performing cylinder head porting service at this price.  Call one of our sales consultants today if you have any questions or if you would like to discuss your specific application.    Stage 2.5  5.3L Flow Chart Li