Quoted From E-bay listing in 2002... Paid 300.00 Sell for 300.00 THIS ITEM IS A HARD TO FIND SET OF 71 BUICK 455 CYLINDER HEADS, "READY TO BOLT ON" CASTING # 123 661 OFF OF MY GS 455.FIT ALL BUICK 455 70-71-72-73. AND MORE .. THEY WERE JUST FRESENED UP: MAGNUFLUXED, GRIND VALYES AND SEATS, SEALS ,NEW EXP PLUGS, TOUCH UP SURFACE FOR FLATNESS, I JUST TODAY PICKED THEM UP FROM THE SHOP /STD. HEADS AND VALYES WITH COMPETITION CAMS VALYE SPRINGS PART #910 AND KEEPERS. HAD THE HEADS DONE BECAUSE I AM RESTORING THE CAR AND MOTOR, SELLING ONLY BECAUSE I FOUND A SET OF (STAGE 1 HEADS) .....EMAIL WITH ANY QUESTIONS OR MORE PICS .. WINNING BID PAYS SIH AND OPTIONAL INS :THEY ARE REAVY APROX 65 LBS EACH FROM 34997 KEY WORDS: BUICK ,455,GS,GSX,SKYLARK,GM. On Feb-17-02 dt 02:21:00 PST, seller added the following information: