Help With Possible LS6 Chevelle

[talwell]

I purchased a 1970 Chevelle last year from and old guy in Neveda. Story was that his friend had it sitting in his yard for years and he finally sold it to this guy. He buys and sells old muscle cars that he finds as a hobby.

Upon getting the car there was a few things that caught my attention. First was that it was a front disc brake car and a functional cowl induction car. Definately a big block car and was a factory 4 speed car with what appeared to be the original 12 bolt rear in it. Car appeared to be highly optioned as the power window regulators were still in the doors. Car is a 100% original sheet metal car and only needs tiny patches over one rear wheel. As well, it is a special paint code car as indicated by the trim tag that is still on the car.

Now, fast forward to a few days ago. I needed a 12 bolt for another one of the 1970 Chevelles that we restored and are putting together. I decided to pull he 12 bolt out of this particular car. Low and behold - rear is coded CRW0218B2. LS6 only 4:10 heavy duty posi. Also has boxed trailing arms, heavy duty front sway bar.

Unfortunately the seats are gone as is the rest of the interior and drivetrain. I am really starting to think this is an original LS6 car but need help from the gurus.

Minus a build sheet or motor with stamped vin and LS6 suffix - is there any other way to identify this car?