Engine Details • GMC 231CID (3.8L) GAS • 1975–09
Models
Caballero
Liters
3.8
CID
231
Fuel / Delivery
GAS / CARB, FI
Cyl.
6
Version
-
VIN
1, 2, 3, 4, 7, 8, 9, A, B, C, G, K, L
Desc.
-
Bore
3.80'' (96.5mm)
Stroke
-
Head
-
Asp.
N, S, T
Misc.
The 5th character (1976-80) or the 8th character (1981 & up) of the Vehicle Identification Number identifies the -Engine: i.e. 231-A, 231-C, Etc.
Available Part Categories
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Oil Pump - Screen Assy for GMC 231CID (3.8L) GAS • 1975–09
7 parts found
| Part No. | Description | Quantity | Specs |
|---|---|---|---|
| 20-IS1 | 1st design with 4.5" deep oil pan, '75-77 VIN C; '77-80 VIN A; '78-79 VIN 2; '78-80 VIN 3 (Exc. '79-80 Riviera) | 1 | |
| 20-IS2 | 2nd design with 5.25" deep oil pan, '78-82 VIN 3 (Exc. '80-82 Riviera); '79 VIN 2; '79-83 VIN A; '83 VIN 8 (Exc. Riviera); '86-89 VIN 7 | 1 | |
| 20-IS6 | '84-85 Regal; '84-87 VIN A | 1 | |
| 230-S | '88-90 VIN C, 1st design with oil level indicator #24500027 or 25530577 stamped on the indicator; '86-88 VIN 3; '86 VIN B, VIN 3, with 2nd design with 4.72" deep oil pan. | 1 | |
| 256-S | '95-98 VIN K (Exc. Camaro, Firebird); '92-95 VIN L; '92-99 VIN 1 | 1 | |
| 257-S | '90-91 VIN 1, VIN C, VIN L | 1 | |
| 292-S | '95-00 Camaro, Firebird, VIN K | 1 |