The Beehive springs I personally was referring to were from Comp Cams.
According to 2 or 3 people the 1.800" installed height will work, but there are some folks who would disagree. The Compcams 26918 and 26915 Beehive springs have been installed on Iron L31 Vortecs with success, you must use a different retainer than the LS1/6 guys use as the valvestem dia. is differnt between the GEN 1E and the GEN 3 engines.
I am hesitsant to give these Ebay springs a go ahead, but they do seem to check out as far as the OD goes, again it would be nice t see teh ID as the Vortec head have an unusually large diameter that the spring must fit over.
These are the springs and retainer kit from Crane you are talking about.
Here are the 26918 Beehives the 26915 offer a little less pressure, same measurements though
use with these retainers for NON LS1/6 use
Others will chime in here.