Chevy engine blocks origin ?

[Greg Reimer 7376]

Got hold of an engine core once-the cast date on the block at the rear was E127-May 12,1967. The stamping on the pad in front of the right head was T 0515 XX{don't remember the code- it was for a 327 250 horse PG trans type of thing.That engine was final assembled and ready for assembly line installation three days after the block was cast. Talk about a real seasoned casting!
All the 348,409,396-454's were Tonowanda engines. The small blocks were if the stamping on that same pad started with T. Also, the Tonowanda engines had a silver sticker on the passenger side valve cover that said,Tonowanda the Number 1 Team.