I'm 100% positive it is an 8 valve head. He said the motor had been replaced before he bought the car. I looked at the head and pistons, shure nuff, 2 valves per cylinder. Does he need an a6 dist. and e.c.u.? 16 Valve head on 8 valve pistons? Is that possible? <_< I dont want to fuck him over by selling him the wrong head.