GENERAL SPECIFICATIONS & VIN IDENTIFICATION
| Model | Body | (1) Engine | Engine ID | Fuel System | Ignition Systemn |
|---|
| Astro & Safari | M,L | 4.3L (LB4) | Z | TBI | Magnetic |
| M,L | 4.3l (L35) | W | CPI | Magnetic |
| Blazer & Yukon | K | 5.7L (LO5) | K | TBI | Magnetic |
| K | 6.5L (L56) (4) | S | Turbo Diesel | N/A |
| Lumina APV, Silhouette, & Trans Sport | U | 3.1L (LG6) | D | TBI | Magnetic |
| U | 3.8L (L27) | L | MFI | C(3)I |
| Parcel/Delivery Commercial Van & Motorhome | P | 4.3L (LB4) | Z | TBI | Magnetic |
| P | 5.7L (LO5) | K | TBI | Magnetic |
| P | 6.5L (L57) (4) | Y | Diesel | N/A |
| P | 6.5L (L65) (4) | F | Turbo Diesel | N/A |
| P | 7.4L (L19) | N | TBI | Magnetic |
| Pickup (C/K 10/35) & Sierra | C,K | 4.3L (LB4) | Z | TBI | Magnetic |
| C,K | 5.0L (LO3) | H | TBI | Magnetic |
| C,K | 5.7L (LO5) | K | TBI | Magnetic |
| C,K | 5.7L (LO5) | K | CNG (2) | Magnetic |
| C,K | 6.5L (L65) (4) | F | Turbo Diesel | N/A |
| C,K | 6.5L (L49) (3) | P | Diesel | N/A |
| C,K | 6.5L (L56) (4) | S | Turbo Diesel | N/A |
| C,K | 7.4L (L19) | N | TBI | Magnetic |
| Suburban | C,K | 5.7L (LO5) | K | TBI | Magnetic |
| C,K | 6.5L (L65) (4) | F | Turbo Diesel | N/A |
| C,K | 7.4L (L19) | N | TBI | Magnetic |
| S/T Series Blazer, Bravada, Jimmy, Pickup & Sonoma | S,T | 2.2L (LN2) (5) | 4 | MFI | Magnetic |
| S,T | 4.3L (LB4) | Z | TBI | Magnetic |
| S,T | 4.3L (L35) | W | CPI | Magnetic |
| Van (10/35), Rally Van & Vandura | G | 4.3L (LB4) | Z | TBI | Magnetic |
| G | 5.0L (LO3) | H | TBI | Magnetic |
| G | 5.7L (LO5) | K | TBI | Magnetic |
| G | 6.5L (L49) (3) | P | Diesel | N/A |
| G | 6.5L (L57) (4) | Y | Diesel | N/A |
| G | 7.4L (L19) | N | TBI | Magnetic |
| (1) Engine code is stamped on engine block. See ENGINE CODE LOCATION . (2) Compressed natural gas, limited information available. (3) Light Duty emissions. (4) Heavy Duty emissions. (5) 2WD only. |
| (1) | Engine code is stamped on engine block. See ENGINE CODE LOCATION . |
| (2) | Compressed natural gas, limited information available. |
