Reference Details
- Common issue
- A standard 455 or replacement engine represented as Stage 1 without matching SS engine-code evidence and car-specific documentation.
- Confidence
- reported
- Correct value
- The referenced Buick engine-identification table lists the 1970 V-8 455 4-barrel GS Stage 1 engine code as SS.
- Where to check
- Engine identification stamping, then reconcile with casting dates, build documentation, and the vehicle identity record.