1974 Corvette Convertible 454 Numbers-Matching Verification Notes - VIN & Codes

This is a handwritten inspection/verification note dated April 23, 2005, documenting the identifying numbers of a 1974 Chevrolet Corvette convertible showing 9,584 miles. The note records the VIN (1Z67Z4S421128) and confirms the engine stamping is original. Decoded details include: the engine suffix code 'CWR' identifying the 454 cubic-inch V8 rated at 270 HP with automatic transmission; the partial VIN '121128' stamped on the engine matching the car's VIN (a numbers-matching engine); the block casting date code 'B 28 74' translating to February 28, 1974; and casting number 3999289 confirming a 454 block. Trim and paint codes are also decoded: 415 indicates a Saddle vinyl interior and 68L indicates Dark Brown Metallic paint. Finally, the body build date code 'H-8' is decoded as a March 8th build date. A reader can learn from this document how a specific 1974 Corvette convertible was authenticated as numbers-matching, including its engine, casting date, casting number, interior, paint color, and build date. This appears to be one page of a multi-page set of documentation photos.