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6 Cyl, 292 cid (4.8L, VIN T, 3rd digit)
8 Cyl, 350 cid (5.7L)
- EGR
- Without EGR
8 Cyl, 400 cid (6.6L)
- VIN R (3rd digit)
  - EGR
  - Without EGR
- VIN X (3rd digit)
  - EGR
  - Without EGR
8 Cyl, 454 cid (7.4L, VIN W, 3rd digit)

Engine Assembly for 1980 GMC P3500

Fits: 8 Cyl, 400 cid 6.6L VIN R 3rd digit Without EGR (change)

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