The ability to identify boosted top quarks will be of great importance in searches for new physics at the LHC, since boosted tops play an important role in many scenarios of physics beyond the Standard Model. One top tagging algorithm that has been successfully used in the ATLAS collaboration is the HEPTopTagger, which exploits the clustering history of Cambridge/Aachen (C/A) jets to filter out everything but the core objects inside the jets in an attempt to identify those originating from top quark decay. However, as most physics studies in ATLAS uses another jet algorithm, the anti-kt algorithm, it is of interest to know whether top tagging with the HEPTopTagger is possible on jets initially clustered with anti-kt. In this talk I will present the results of my master's thesis, in which it is found that the HEPTopTagger can be used with equal performance on anti-kt jets as C/A jets. Furthermore, it is demonstrated that the HEPTopTagger with anti-kt jets provide an exciting possibility for the discovery of heavy resonances decaying to boosted top-antitop quarks in dijet mass searches. In particular, we consider the ttbar decay of a Kaluza-Klein gluon with a mass of 3 TeV.