Jamie,the current transmission in your car isn't original to your car since the 58 powerglides were cast iron.If your looking for an answer about the engine,it simply doesn't exist. The vin will only tell wheather the the car came with a 6 or 8 cylinder engine.There's nothing on the data plate,and partial vin's on the engine didn't start until 62 beginning with the 300 horse 327 engine.I 'm not saying that it is or isn't just that there is no 100 percent way to prove that it is.