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6 Cyl, 262 cid (4.3L, VIN Z, 8th digit)
6 Cyl, 292 cid (4.8L, VIN T, 8th digit)
8 Cyl, 305 cid (5.0L, VIN H, 8th digit)
8 Cyl, 350 cid (5.7L)
- 4-barrel carburetor (VIN M, 8th digit)
- EFI (VIN K, 8th digit)
8 Cyl, 379 cid (6.2L, VIN C, 8th digit, diesel)
- model VIN C/K (5th digit)
  - Automatic Transmission
  - Manual Transmission
- model VIN R/V (5th digit)
  - Automatic Transmission
  - Manual Transmission
8 Cyl, 454 cid (7.4L)
- 4-barrel carburetor (VIN W, 8th digit)
- EFI (VIN N, 8th digit)

Engine Assembly for 1988 GMC P2500

Fits: 8 Cyl, 379 cid 6.2L, VIN C, 8th digit, diesel model VIN C/K 5th digit Manual Transmission (change)

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