69 383 Camper special motor. Info needed

I have the chance to get a 100,000 mile 69 383 out of a camper special truck. One owner, he had hardened seats put in the heads @ 18 years ago other than that the short block is virgin. Could this motor have a steel crank & 906 heads being original to the truck? I know anything is possible but what is the standard 1969 Dodge Camper Special truck packing? I might be going the big block route in the Swinger.