I know they've a lot more duration than the 254/276 (or thereabouts) Schrick and Piper offerings, and had a lot of overlap - as to exact spec I'm not sure, Liam did tell me back in the day but I wasn't interested in Eatons at the time so didn't pay attention...
Some of the conversions out there will be crappy to drive unless they've got a decent map to suit.