You need to do some more investigating before you commit to this big job. Pictures will helps us give better advice. Get casting dates and engine casting information first. The thick balancer is a dead giveaway to a cast crank 440. If so, the block is really the only thing you want to salvage. The trans guts should be good ones but it may have the short tailshaft. That’s no good for out cars but the insides are getting harder to find.