Join Date: Dec 2006
Location: Severna Park, MD
One might check McMaster-Carr for the stranger versions of a carriage bolt. I think in the end, it's the POs of the passed that, over time, buggered the recesses for the carriage shoulders.
64 1/2 Poppy Red Cvt. Resto-Mod
333 Cu.in. T5z, 3:55, Dual 40 mm DCOE Webers
Performer RPM, CI cam, TFS/TWs, Tri-Ys, Discs w/Shelby Drums
Severna Park, Maryland