no you don't know the value. Q code 351-4V Cleveland 4 speed in a 72 Ranchero GT is more Rare then the 72 Gran Torino Sport Q code 4 speed car and they sell for $25K plus. Maybe not all want a Ranchero but with all that has been done this is easily a $18K Ranchero. Buy a rust free 72 Ranchero GT factory Q code 4 speed then do everything he has done and let me know how much you spent. Oh wait first you have to find 1 of 782 Q code 4 speed 72 Ranchero GT. Good Luck with that