ROBERT COX ENGINEERING on facebook. THOROUGHLY STRIPPED AND CHEMICALLY CLEANED. POROUS REPAIR UNDERTAKEN TO CENTRAL OIL GALLEY TO PREVENT FUTURE POROUS PROBLEMS OR TO REPAIR EXISTING POROUS PROBLEM. 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 GUIDE LINERS INSTALLED TO REPAIR WORN GUIDES AND BRING BACK TO CORRECT CLEARANCES. REBUILT WITH NEW VALVE STEM OIL SEALS. I ALSO CAN SUPPLY CUSTOM PERFORMANCE CAMSHAFTS, UPRATED VALVE SPRINGS, I HAVE A GOOD QUANTITY…