It does run hotter... but Uniserver's kind of been-there, done-that, so hopefully he will chime in.  It seems the 25Mhz 040's all have passive heatsinks when installed by Apple (like in the Q700). I guess they are there for a reason.

https://68kmla.org/forums/index.php?/topic/20913-full-040-in-a-575-need-a-heat-sink/?hl=heat+sink