Ok, just pulled out these from Airbus FOVE for you:
A340-500 series:
LHR RWY 27R, based on 0 Wind, 15 degrees C, QNH 1013, DRY RWY, PACKS ON, ANTI ICE OFF at TOW 368000 kgs
CONF 3
FLEX TEMP: 43
V1: 153
VR: 164
V2: 174
Same conditions at 280000 kgs:
CONF: 1+F
FLEX TEMP: 70
V1: 146
VR: 150
V2: 159
Using the same RWY and conditions for the A340-600 series:
TOW: 380000 kgs
CONF: 3
FLEX TEMP: 37
V1: 152
VR: 170
V2: 181
Same conditions at 290000 kgs:
CONF: 2
FLEX TEMP: 67
V1: 147
VR: 152
V2: 161
Hope this helps. Any more you need just let me know.
Regards
BB