Engine Summary
- Manufacturer
- General Motors
- Family
- Quad 4
- Displacement
- 138 cubic inches
Engine profile
Quad 4 · 138 cubic inches · General Motors
Identification reference
Source-backed component numbers, codes, stampings, and application notes.
Factory option code, not a VIN engine code.
Sources: 1993 Pontiac Grand Am press information, specifications page 10
EPA lists 139 CID; the press sheet prints 138 CID. Values are retained with attribution, not silently reconciled.
Sources: 1993 fuel economy guide data, Grand Am records , 1993 Pontiac Grand Am press information, specifications page 10
Owner-manual engine identity; the factory equipment table separately establishes GT eligibility.
Sources: 1993 Pontiac Grand Am owner's manual, printed pages 200 and 256
1 linked car page.
Two-door coupe or four-door sedan
3 documented powertrain configurations