1970 Chevelle LS6......need your opinions

[Mr70]

April 28th CRW rear looks good for this June Arlington assembly.
That's not it's born with trans...but a 1972 production M22.
Might be a special paint color car,or trim tag looks like the paint code might have been sanded off maybe?..that area looks unusually smooth from here.
Looks like someone scratched the pad left to right with an abrasive to reveal the CON VIN.I like the pad & see vintage broaching,based on that one pic from here.
Although it is missing a digit,that's not uncommon.
TO17CRV coulda meant to be TO117,or TO107 or even missing a number closer to June too.
Whats the blocks casting number & date in the back?
Does it have the std. larger oil cooler provision above the oil filter to prove it's a 4 bolt block?