1970 Camaro L78 - Original Engine?

[Hans L]

First, quick intro - while I follow and frequent this site often, I rarely post. I'm typically over at the CRG site, as I own a '69 RS Z with the born-with driveline.

Anyway, I know of a '70 Camaro SS L78 with what appears to be the original engine.

I'll post some images of the various stamps, codes, and casting numbers and would be great to get some feedback on whether it's the original engine or not.

Some background on the car:
- Car has been off the road since the early '80's
- Car is somewhat disassembled.
- Originally Cortez Silver. It was painted at some point blue. Paint has faded, cracked, and in places there is topical surface rust on the panels. The floor broads, trunk are solid.
- The original 4 speed transmissions at this time is missing. It maybe in a storage locker elsewhere.

Pics coming shortly.

Thanks,

Hans
San Diego, CA