Yes it is definitely a 414vg but with this 360 configeration of an engine but if he has had a liner made the head would still be 414 or would it make no difference even though you can see a difference in the 2 heads.It seems to be that most of the 414 monts over here in the Uk are vg's which would make sense as bill brown (a maico dealer) purchased most of the last yellow tank 414 vg's and sold them in 1980 for around £500.414 VF's are harder to find and 250cc ve/vf are even harder to find,in 15 or so years i have only found and purchased 2 250 vf's to go with my 250 ve and yet you would think that the 250's would be more common as more were racing than the 414's.As for the white tanks if anyone knows of one for sale i would be interested (cue jared).