Turn around time is 2 to 3 weeks from the day we receive your Cylinder Heads. Your Cylinder Heads will be disassembled, cleaned, and inspected prior to any service being done to the Cylinder Heads. Next your Cylinder Heads will be ported with our CNC program based on your supplied motor information and performance configuration provided by you. Then your Cylinder heads will have AV&V Bronze Magnesium Guides installed and fitted. Once guides are INSTALLED the seats are cut with our PROPIETARY MULTI ANGLE INTAKE AND FULL RADIUS EXHAUST. During the seat work the valve stem depth is set depending on your CAMSHAFT which will dictate the valve protrusion and…