Hey guys.. question, did the 85's come out the with the e7 heads? I cant find a casting number.. the valve covers were stamped e4 though? Im asking because i noticed that when i took my heads off, the exhaust ports were p/p, the springs were a metallic blue color - didnt think those were original, it had rr's (how to tell what ratio?) and the valves looked big.. i measured them to be 1.84" and 1.55" or 1.6" .. this isnt stock size it is? i thought that was gt40 head valve sizes??