According to the specifications the case is 8 inches wide. That is not wide enough to accomodate a 160mm tall tower style cpu heatsink and the large 250mm fan on the side panel. the case would need to be almost 9 inches wide.
You have several options.
1. Get a case that is 9 inches wide.
2. Remove the 250mm fan on the side panel and hope the ventilation, airflow, and cooling is still good.
3. Get a slightly shorter low profile cpu heatsink:http://www.frostytech.com/top5_lowprofile_heatsinks.cfm