[Woodz428]

Engine type is a preference really. I will address the heat issue though. I doubt that any engine, regardless of what type it is, will have less heat if it makes the same power. HP generates more heat. The hotter you can get an engine, short of meltdown, will make more power...it's physics. A mild 351W won't have as much heat as a Roush 402 or 427 based on the same block. Now.....the proximity of the engine to the panels can create more heat transfer, which may be what is being referred to. So a smaller external size can lessen that, but I doubt that it creates less heat of a comparable HP BB.