1974 Corvette Convertible 454 Numbers-Matching Notes - VIN, CWR Engine Codes

This is a handwritten note dated 4-23-05 documenting the numbers-matching details of a 1970s (apparently 1974) Chevrolet Corvette convertible showing roughly 9,58X miles. The note records the car's VIN (written as 1Z67Z*S 4Z1128) and decodes several factory identification codes. The engine stamping is stated to be original: the suffix code 'CWR' is identified as the 454 cubic-inch engine rated at 270 HP with an automatic transmission, and the partial VIN stamp '1Z1128' is noted as matching (mating to) the car's VIN. The block casting date code 'B 28 7[4]' is decoded as February 28, and casting number 3999289 is identified as a 454 block. Trim and paint codes are also decoded: 415 = saddle vinyl interior, 68L = dark brown metallic paint, and body build date code H-8 = March 8th build date. A reader can use this note to verify that the engine, interior, paint, and build date codes on this Corvette are consistent with a numbers-matching original 454 automatic convertible. Note that although uploaded to a Ford Crown Victoria gallery, the document explicitly concerns a Corvette.