Reference Details
- Common issue
- An installed FE/428 block represented as the original numbers-matching Cobra Jet engine without a matching partial VIN or corroborating paperwork.
- Confidence
- reported
- Correct value
- Production 428 Cobra Jet blocks may carry a partial vehicle VIN on the rear block pad; the stamping should be compared with the vehicle VIN and factory records rather than treated as stand-alone proof.
- Where to check
- Flat pad near the upper-left rear of the block; registry also reports some findings at the rear of the driver-side cylinder head.