Rare Corvette Square Port Heads #3994026 ([phone removed] in Chicago, IL

VERY VERY VERY RARE 1971 FACTORY SQUARE PORT HIGH PERFORMANCE HEADS DATE CODE F 28 71. THESE ARE [removed phone] PRE-OWNED ON 1971 LS6 CORVETTE THIS PAIR IS one OF ((((( 188 ))))) MADE THAT'S OUT OF 21,801 CORVETTES MADE ONLY 188 WERE OPTIONED WITH THE LS6 - IT WAS REPORTED THAT fourteen LS6 CHEVELLES WERE MADE SO FAR NONE ARE DOCUMENTED ---3 ANGLE VALVE JOB NEW STAINLESS STEEL VALVES NEW RETAINERS NEW CROWER VALVE SPRING TEFLON VALVE STEMS THE HEADS ARE FRESH AND READY TO BOLT ON OPEN CHAMER 118cc---CORVETTE L88 ZR2 LS6 CREATES MADE LS5 CHEVELLE SS NOVA CAMARO RS SS [removed phone] BIG BLOCK CHEVY RECTANGULAR PORT OVAL PORTListing originally posted at http