Correctly identifying an original or replacement engine can be an important part of documenting and restoring your 1969 GTO. Engine identification books provide casting numbers, suffix codes, production information, specifications, and other details that can help determine an engine’s application and originality.
OPGI offers one engine identification books and reference guides applicable to your vehicle. These resources can help decode engine blocks, cylinder heads, intake manifolds, carburetors, and other components while providing historical production information useful for restorations and authenticity research. Prices range from $13.99 to $13.99, giving enthusiasts and restorers access to detailed references for identifying factory equipment.
Every purchase is backed by our Price Match Guarantee and protected by OPGI’s 60-day return policy, so you can order with confidence.
Orders ship quickly to your door, or you can visit our Southern California Showroom & Warehouse to browse select books in person and talk through your project needs with our team.