1936 Camshaft Sprocket bolts

Hello, I am assembling a 36 Chrysler straight 8 and need the four bolts that hold the cam sprocket to the camshaft. The parts book (which I don't have) calls for three part #123499 and one part #43836, these are 5/16" SAE bolts, I don't know the proper length but the odd bolt has an extended shoulder that goes into a counter-bore in the camshaft.

I do have a 37 DeSoto 6 that is together would anyone happen to know if this engine uses four bolts to hold the cam sprocket on?

Thank you,

Jay