ROBERT COX ENGINEERING on facebook. THOROUGHLY STRIPPED AND CHEMICALLY CLEANED. RE CUT VALVE SEATS. MODIFIED STANDARD SIZE GENUINE USED VALVES. RCE SPECIFICATION FAST ROAD VALVE THROATS AND PORTS. PORT MATCHED TO STD GASKETS. PORTED AND FINISHED TO A HIGH STANDARD. RESURFACED SKIMMED BY MINIMUM. SUPPLIED ASSEMBLED WITH GOOD USED STD SPECIFICATION SPRINGS, COLLETS, RETAINERS. 16 NEW VALVE GUIDES. REBUILT WITH NEW UPRATED VALVE STEM OIL SEALS WHICH REPLACE THE VALVE SPRING SEAT. I ALSO CAN SUPPLY CUSTOM PERFORMANCE CAMSHAFTS, UPRATED VALVE SPRINGS, I HAVE A GOOD QUANTITY OF STANDARD CAMS AVAILABLE FOR PURCHA. The item "VAUXHALL VXR GSI GAS FLOWED Z20LET Z20LEH PORTED AND POLISHED CYLINDER HEAD" is in sale…

ROBERT COX ENGINEERING on facebook. THOROUGHLY STRIPPED AND CHEMICALLY CLEANED. RE CUT VALVE SEATS. MODIFIED STANDARD SIZE GENUINE USED VALVES. RCE SPECIFICATION FAST ROAD VALVE THROATS AND PORTS. PORT MATCHED TO STD GASKETS. PORTED AND FINISHED TO A HIGH STANDARD. RESURFACED SKIMMED BY MINIMUM. SUPPLIED ASSEMBLED WITH GOOD USED STD SPECIFICATION SPRINGS, COLLETS, RETAINERS. 16 NEW VALVE GUIDES. REBUILT WITH NEW UPRATED VALVE STEM OIL SEALS WHICH REPLACE THE VALVE SPRING SEAT. I ALSO CAN SUPPLY CUSTOM PERFORMANCE CAMSHAFTS, UPRATED VALVE SPRINGS, I HAVE A GOOD QUANTITY OF STANDARD CAMS AVAILABLE FOR PURCHA. The item "VAUXHALL VXR GSI GAS FLOWED Z20LET Z20LEH PORTED AND POLISHED CYLINDER HEAD" is in sale…