Hey! If you have less than 610 item level, you can get into the Ashran PvP zone and kill bosses to get items that are like 660 ilvl in pvp but only 600 ilvl in pve. If you equip these items, go into the Ashran PvP zone and then accept to join the battle your item level will be boosted. If you then walk out to Stormshield the item level will stick and won't downscale until you walk out of there completely.. This will allow you to queue for heroic dungeons!
Examples of such items:
Primal Combatant's Cape of Prowess - Item - World of Warcraft
Primal Aspirant's Ring of Prowess - Game Guide - World of Warcraft