Reference Details
- Common issue
- Replacement 340 block with missing, restamped, or date-inconsistent identification number represented as original to the car.
- Confidence
- documented
- Correct value
- 340 CID engine identification uses a plant code, 340 displacement, four-digit date code, and daily sequential serial; 340 identification boss is at the left side, front of block, below the cylinder head.
- Where to check
- Engine identification-number boss on the left front side of the 340 block below the cylinder head; compare with VIN, fender tag, broadcast sheet, and assembly-date evidence.