Re: DRM...Hose routing question??
Dave, I'm sure you didn't quite mean it like you said.
Minor 'nit-pick'....... The 'ten kazallion' SB chevys, ALL HAVE A BYPASS. Check it out. IMO, not a good idea to try 'no-bypass'. It's a little like 'dead-headin' a pump. On most Chevy SB's, the bypass is built into the water-pump ports. It's the 'extra' hole that you find on the gaskets. There are a few SB chevys, where this bypass hole is blocked. And, that is what the 'pin' is for, in the box with a new pump. These models are trucks, which have a separate bypass circuit, through a hose (molded, heater-type, very short).
I agree with the rest of your post, and see no reason why the 360 bypass shouldn't be restricted. Or, a heater circuit, WITHOUT A heater temp-control SHUTOFF VALVE, could be used for the bypass. The factory could not do it this way, because it is not 'idiot-proof'. If the heater core fails, and someone eliminates the heater circuit, a bypass is still needed. No reason why it can't be 'restricted', even if the heater circuit serves as the bypass. I believe the Chevy bypass hole is about 3/8-inch.