Yeah, that sounds like an iron duke. Those are getting harder to find as the years go on, but they are not in great demand either. They used to be a popular racing engine, but there are several aftermarket copies that are made of aluminum and make a whole lot more power.
You may get a better idea of how much it's worth by going to another website and asking there. Try this one or search for similar outfits and racing organizations:
www.bmara.com There are still lots of dirt track racers out there that are limited in funds and rules to using iron motors, so you may be able to find somebody in Texas that wants it.
You could also just post it for sale in the classifieds here on this site.
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David
newbie #4153
