Reference Details
- Common issue
- A replacement or restamped 440 block may lack a compatible plant/date/sequence identification or may not agree with the VIN, fender tag, broadcast sheet, and vehicle build timing.
- Confidence
- documented
- Correct value
- Engine identification number uses plant code, 440 cubic-inch displacement, four-digit date code, and daily serial sequence; 440 boss location is left side rear of block near the oil-pan flange.
- Where to check
- Stamped engine identification boss on the left rear side of the block near the oil-pan flange.