Reference Details
- Common issue
- A Ram Air III, ordinary Pontiac 400, or later service/replacement engine represented as the original Ram Air IV assembly.
- Confidence
- reported
- Correct value
- 400 Ram Air IV round-port engine evidence aligned with the car's documents
- Where to check
- Engine casting and date evidence, round-port cylinder-head evidence, intake and exhaust manifold evidence, engine pad/code context, partial VIN stamp where applicable, and supporting paperwork