dart 340 I.D.

I went and bought a hood and front bumper today from a 71 dart. The guy told me the car was complete and nice for $500. Went out about an hour away to see a rusted out pile of junk. He sold the Kelsey Hayes brakes, moved the car around for years with a forklift, and left the windows down under an acorn tree for 10+ years. It is ROUGH, but I got the nice hood and decent bumper for $120. He said it was a base model 318 car. But it had disc brakes, has A/C, an 8 3/4 and various trim that my car wasn't born with. I was a dummy and didn't verify that it was a plain old 318. The front end is in the dirt without any suspension under it. And it was starting to snow. The motor is blue and had a 4 barrel carb and cast intake. What's the possibility of it being a 340? The car didn't have hood scoops but has the good axle and brakes. Did all swinger 340's all have scoops?