I thought it looked familiar!!
The 383 2bbl would've/should've been blue in any '70 or '71 Mopar including a Satelitte Sebring Plus, but what was the purpose of this "highly" unusual "NO SPEC", "front & rear spoiler", "HEMI-ORANGE" SSP??

Is it missing the front bench? Have you looked for a broadcast sheet? Does it still have a 2bbl intake on it?
My guess is you will have to disassemble & see if it is "stock" '71 383 2bbl specs., but I missed on the chrome bumper so who knows?

Does the bumper in the trunk have the same damage as the header panel?