[Bobboloo]

What is the engine type? It should be written on the case to the right of the fan support next to the oil pressure sender. It should look something like 911/91

What's the VIN on your car. I'm guessing that maybe it's a 73.5'T since you say it has a 7R case.

Are the cylinders iron or alloy? If they're iron they should have an rust orange color since they would be rusted on the surface.