360/440 cast crank manual flywheel

All the 360 fw that I have seen have the 3 big holes like in the pick. I have seen about 20 or so. My own personal stuff has been a 74 Cuda 360, a 74 Duster 360, a 74 Dart Sport 360 and a few trucks. All had a 10 inch clutch. Even a 1 ton dually. Never had a cast crank bb with a manual trans. I have had a couple of the cast crank 340s as well. Kim