There's no way to make a module ( the term is compute unit, there's no module in any microprocessor engineering book ) appear/act as a single core.
Also expecting to see an eight-core FX working operate fully stable for 24/7 usage over 5GHz on air cooling is more than a daydream, and even if they ( let me enhance the dream ) could make BD like 10% faster with a revision [ simply impossible, just saying

] and even make them have a decent average air cooled overclock at approx 5.5GHz, it'd still not be enough to match the 2600K.