THIS IS A NICE SET OF Freshly Done 350 CHEVY 993 CASTING HEADS. {These heads are compared to the 441 & 487X castings for flow and performance. Much better than 882 & 624 castings} WITH NEW STAINLESS STEEL 1.94-1.600 VALVES (These valve sizes are the best for torque and power at low and mid range), NEW GUIDES, 3 ANGLE VALVE JOB, MILLED .008Ths. GASKET MATCHED EXHAUST PORTS. NEW SPRINGS THAT WILL HANDLE UP TO .575 LIFT, WILL WORK ON PERFORMANCE HYDRAULIC OR MILD SOLID LIFTER CAM. CASTING DATES ARE C 9 73. THESE ARE HIGH NICKLE & THICK CASTED HEADS SO HARD SEAT HAVE NOT BEEN INSTALLED.THEY WILL WORK WITH UNLEADED FUEL. (HARD SEATS WOULD ONLY BE NEEDED IF PROPANE IS BEING USED). THESE HEADS HAVE BEEN PROFESSIONALY DONE AND HAVE BEEN PUT BACK IN SHRINK WRAP. Note: They do have bolt holes.(Over $425.00 Invested) NO RESERVE. Just the $295.00 opening bid. And well worth it. HAPPY BIDDING.