8th Ed. Stegadon helmet of Itza and Great Weapon

Does the stegadon helmets impact hits benefit from the 2+ strenght of the great weapon?

 

I don't believe so...

It would have to be something like the Stegadon Spear that we had last edition.
(it mentioned specificly that it added to impact hits)

 

I didnt believe so either I was just double checking

 

To think of it this way, the character only gains the bonus strength when he is using the weapon to strike. the +2 isn't a permanent change to his stats. This means that we get to use our still great base strength on those lovely impact hits.