70 chevelle VIN vs Build Date

[GotGrunt]

I’ve spoken to this seller before, well over 6 months ago. He was trying to sell my friend the M22 and CRV rear out of it. The rear end is pitted to hell though, the date has completely rusted away. I believe him and his buddy had a legitimate LS5 that was too far gone and transplanted the drivetrain and VIN tag onto that body shell. They just didn't have enough sense to swap the LS5 trim tag and eliminate the stamp under the heater box before posting it up for sale everywhere. It’s great for parts, but good luck registering it. FYI, the block has been decked so only the partial VIN is faintly visible. The engine date & suffix are gone.