help needed to work out which is which

[bigcooler]

hi guys i have mixed up my 7A and ABY exhaust valves, one set of them have the VW and AUDI logos stamped on the top above where the collets sit with (027611 0) next to them then under where the collets sit is (T-T 33213 10) all of which are engraved in to the valves then i have the other set which has i think it says (1 827811 0) but this number is NOT engraved it just looks like its been written on. Also i have tryed to take a picture of the numbers but my camera wont focus on the valve let alone the numbers. please can someone help me


thanks ben

[Error404]

whitishn tint should mean they are sodium filled, some 7As had sodium ext valves so if they are AFAIK they are the same as ABY anyway

[bigcooler]

when you say a whitish tint where do you mean do you mean the bottom (trumpet end)