I got a set of ECZ-O Or G head in good rebiuldable codtion I just removed these from the motor today All mounting surfaces are in great condtion All threads are good I see no cracks or repairs I also have the rockers for this with push rods I have the maching manifolds to Ill sell the hole motor if any 1 wants it Im not sure of the size I measured the bore its 3 11/16 Im in WV

86 mustang 351c

lt250/500r hybrid 4'' over swinger scr porting v2 reeds Q-pipe

West virgina