63-66 292 used the same size bolts as standard SBC and are fully interchangeable with flywheels and flexplates.
67 and newer 292 used 1/2" bolts with the same bolt pattern and 3 dowels. The smaller bolt hole flywheels and flexplate could be drilled to match hole diameters.
Will6er's part # is probably the 67 and newer style 292 flywheel.