Preparing for a flight to south Texas, this thread (thanks John) got me thinking about checking those bolts. Memory had me guessing whether I
installed those bolts correctly.
Pulled the cowls and as close as possible checked the torque on two of the bolts. But after years of building race engines, I felt confident that I had properly torqued and 'red' locktited all four. Anytime there are metal bolts threaded into case halves it is a good idea to locktite. Mine are good but I hope future builders learn this lesson.