USED BUT IN EXCELLENT CONDITION CORVETTE L-98 (85-91) D-PORT ALUMINUM HEADS PORTED AND POLISHED. HEADS WERE FULLY PORTED AND POLISHED ABOUT EIGHT MONTHS AGO, I THEN ALSO HAD NEW STAINLESS STEEL VALVES INSTALLED (1.94, 1.55) AND ALSO NEW HI-PERFORMANCE SPRINGS GOOD TO 550 LIFT. I TOOK OFF THE HEADS LAST MONTH BECAUSE I AM UPGRADING THE ENGINE TO A 406 C.I. AND WILL BE UPGRADING TO A SET OF AIR FLOW RESEARCH HEADS. I TOOK THE HEADS TO MY ENGINE BUILDER AND HAD THE HEADS RE-POLISHED, 5 ANGLE VALVE JOB AND RE-SURFACED TO 56CC. HEADS ARE READY TO INSTALL AND HAVE NOT BEEN RUN SINCE. I HAVE OVER $1400 INVESTED IN THESE HEADS. I WILL SELL FOR $750. THANKS. EMAIL ME AT: mike.mckercher@accenture.com IF YOU NEED FURTHER INFO OR PICTURES.