Rarity of a 69 427 L36 in a standard Impala

[black69]

I myself have not inspected it to verify motor stamps myself as I am in his town often enough. It does have an odd number 1 stamp in the cowl tag, centered just above the small general motors corporation text. Someone told him years ago that is likely an inspection mark. My 69 camaro does not have that so it caught my eye when he sent me a picture of it.

Pretty cool, if that is considered a corvette motor, whether rare or not.

Side note, when young visiting my moms family in Missouri, my uncle that seemed to get a lot of used cars, let me take his 427 4 door gold impala out for joy rides and it was fun to floor on hilly black top roads in farm country. I drifted it around turns on gravel roads, it had alot of torque for a lead sled. I thought back then, those front badges on the side of the fenders were super cool with that 427 script. The 4 door aspect was a downer though. I still have a model car of a 69 or 70 427 impala drag car in the attic, I think it was called Sudden Shaker. I loved that model, need to get that back out of storage and show my friend and atleast display it.