no, the measurement is taken from the bottom of the head of the bolt to the end of the thread.



standard CVH head bolts are 135mm long, and for a ZVH you need 150mm long.

you will need to get the right grade of bolt as well tho, i used 12.9 grade bolts which where the allen key type ones, you can get them from Burton for about £30 the set, or do what i did, go to your local nut and bolt place, i got my set for £8.50 the lot and my mate had the burton ones and there the same bolt made by the same people.