Avenger Cylinder Head's offers you the best quality and value in CNC ported head technology. Avenger Cylinder Heads has worked with many different cylinder head manufacturer's over the past 10 years and has develped superior port designs for many of the popular aftermarket aluminium heads. Avenger's ability to duplicte port's exactly and repeatedly offer the racer an advantage over traditional hand porting. With our propriatary simulataneous 5 axis CNC machines we can time after time duplicate ports and airflow with exact precisness. Avenger Cylinder Heads works closely with Ford Performance Solutions and Pacific Performance Products to develop cylinder head combinations that produce winning performance. All combinations of cylinder head packages have been extensively tested on one of our two in-house flow benches and our 1700 hp engine dyno. Avenger has a complete in-house head shop featuring Serdi tooled machines along with complete cylinder head repair ability, including heli-arch welding. Avenger Cylinger Head's warehouses a complete full line of valves, springs, retainers and all necessary head items for a complete one stop in-house facility. Which allows for extensive choice of combinations available. Avenger has complete reveser engineering services available. Avenger will develop and port any head from motorcyle, snowmobile, jetski, or automotive at the customers request. If you are looking for a professiona CNC porting company, look no further. Avenger Cylinder Heads is dedicated to serving the automotive industry. We provide quality, timely service at reasonable prices. Along with innovative machine and problem solving services. Avenger Cylinder Heads has over 150 CNC programs covering most heads, and is always developing new ones. We are always trying to stay on the cutting edge of new products, new port designs, along with updates to original programs.