Will the VT Series II to VF V8 powerbond balancers be ok for a VX SS V8?

The balances that will fit your VX SS running an LS1 V8 are shown in the links below:

PB816

http://www.maceengineering.com.au/epages/shop.sf/en_AU/?ObjectPath=/Shops/mace/Products/PB816/SubProducts/PB816

PB817 

http://www.maceengineering.com.au/epages/shop.sf/en_AU/?ObjectPath=/Shops/mace/Products/PB816/SubProducts/PB817

PB818 

http://www.maceengineering.com.au/epages/shop.sf/en_AU/?ObjectPath=/Shops/mace/Products/PB816/SubProducts/PB818

PBK801 (Power Pulley Kit)

https://www.maceengineering.com.au/epages/mace.sf/en_AU/?ObjectID=1166645&ViewAction=FacetedSearchProducts&SearchString=PBK801+