A cool head is def not the only way to go, a stock cut head will work just as good as a cool head if your on a budget, if ya got extra cash then the cool heads do look nice, and the removable domes is not nice. If you know what kinda fuel you wanna run and dont care about the bling, or building a sleeper motor than a stock head will do just fine, and if mull engineering ever gets the time lol, there head exchange is hard to beat!