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casting codes

  1. Drivetrain & Performance
    Hey guys, I picked a chevy 327 from a friend and it's casting number is: GM 3782870 which is from 62-67. The date code is K253 which tells me November 23, 1963 but the deck plate has FII27S and I can't find that number listed, anyone got any ideas? I'm just trying to know exactly what I'm...