Reference Details
- Common issue
- Restored GTOs are sometimes described as 455 HO based on installed engine or badges rather than factory paperwork.
- Confidence
- documented
- Correct value
- PHS/build documentation should show 455 HO/L75-related engine option and matching drivetrain/options for the claimed car.
- Where to check
- PHS invoice, build sheet where available, window sticker or document file.