It's Back!!! The most complete Chevelle Code Book Ever Made. This book was published by Mark Meekins the President of the NCOA back in the early '80's. It's 283 pages of information on all models of 1964-72 Chevelles. It breaks down Vin Numbers, Production Totals, Stripe Dimensions, Model and Serial Number Identification, Weights, Engine Codes, Transmission Codes, Interior & Exterior Color Codes, Casting Number, and RPO option numbers and more.