There are 11 choices

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BUICK
- 6 Cyl, 231 cid (3.8L)
  - 2-barrel carburetor
    - turbo
      - (VIN G, 5th digit)
    - Without turbo
      - (VIN A, 5th digit)
  - 4-barrel carburetor (turbo, VIN 3, 5th digit)
- 8 Cyl, 301 cid (4.9L, VIN Y, 5th digit)
- 8 Cyl, 305 cid (5.0L)
- 8 Cyl, 350 cid (5.7L)
  - VIN R (5th digit)
  - VIN X (5th digit, Buick)
- 8 Cyl, 403 cid
RIVIERA
- 8 Cyl, 350 cid
  - VIN R (5th digit)
  - VIN X (5th digit, Buick)
- 8 Cyl, 403 cid

Engine Assembly for 1978 Buick Riviera

Fits: BUICK 8 Cyl, 350 cid 5.7L VIN X 5th digit, Buick (change)

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