I have the aluminum bellhousing and motor mounts from a 17' Tahiti that I'm parting out.  Boat had the BBC motor and Berkeley pump with hydraulic jetavator.  The bellhousing has the Guardian mfg cast into it.  I'm not keeping any of the big block Chevy parts.  I still have the water outlet that mounts on the intake manifold, both water inlets that mount on the block, pump shaft with crank adapter, etc.  Boat was sitting a long time.  Even had the 3999289 BBC 454 shortblock in it.  Sold the exhaust manifolds and intake manifold this morning.  I'm located in Northern Nevada near Reno.