1G1
Chevrolet passenger cars built in the United States — including Corvette
Decode any Chevrolet VIN free — Silverado, Equinox, Corvette, Malibu, and more — for the factory trim, engine, plant, and open recalls.
Factory build data from manufacturer and government sources
The first three characters (the WMI) identify the manufacturer and where the vehicle was built. Common Chevrolet prefixes:
Chevrolet passenger cars built in the United States — including Corvette
Chevrolet trucks — Silverado and chassis cabs
Chevrolet cars built in Canada
Chevrolet trucks built in Mexico
Character 8 is the engine code — the quickest way to confirm which V8 a Silverado or Corvette actually left the factory with.
GM's full option history lives in the RPO codes on the glovebox Service Parts Identification label; the VIN decode gives you the build context to read it.
Driver-side dashboard, visible through the windshield
Driver-side door jamb certification label
Service Parts Identification label in the glovebox or trunk (RPO and paint codes)
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Type or paste the 17-character VIN from the dashboard, door jamb, frame, or title.
Year, model, trim, engine, plant, and factory equipment from manufacturer and government records.
No account, no credit card. Add a CARFAX or VinAudit history report later only if you want one.
The most reliable spots: Driver-side dashboard, visible through the windshield; Driver-side door jamb certification label; Service Parts Identification label in the glovebox or trunk (RPO and paint codes). All show the same 17-character VIN — if they disagree with the title, do not buy the vehicle.
Yes — character 8 of the VIN is GM's engine code, and the free decode spells it out as displacement, cylinders, and fuel type. That is the factory engine; a swap after the fact will not show in the VIN.
Every modern Corvette is assembled in Bowling Green, Kentucky, and carries a 1G1Y VIN prefix. The decode confirms the model year and trim level, which drives collector value on older cars.
Yes. The full Chevrolet decode — year, model, trim, engine, factory equipment, and open recalls — is free with no account or credit card. Paid CARFAX or VinAudit reports are optional and add accident, title, and ownership history.
Free decode of the factory build — trim, engine, equipment, and open recalls.