S,T Series (Pickup,Blazer), OHV, 8 Valves, FI, Naturally Aspirated,Gas,WithRoller Cam, Block#311or #046, Head#514 or #485
| Blk cast | 046, 311 |
|---|---|
| Block | Long Block |
| Cylinder | L4 |
| Eng pn | CH465 |
| Eng type | Auto |
| Liter cid | 2.5 / 151 |
| Model | LLV (Post Office Vehicles) |
| Vin | A |
| Yr | 1991, 1992, 1993 |