I have a 67 Barracuda and am thinking about replacing the 273/904 with a 360 engine. I need to know what's different and what to expect with this swap. The car was original with a 273/904 but it's tired and I really don't want to rebuild it. I'm concerned with issues related to cooling, exhaust, oil pan, balancing etc. One more thing, I am currently running a single Accurate exhaust setup for a 318 engine (it's bigger pipe than stock exhaust).