The 292 head doesn't run any hotter then a 250 since the heads are the same. Its just the engine itself, I guess they were just worked really hard which makes heat.
Joe
That would make sense they would get that reputation since the 292 was a truck only engine. I've been sleeping on it the past few nights and was thinking it could also have to do with leaning them out to pass the emissions regulations imposed in the early 70s
