GENERAL SPECIFICATIONS & VIN IDENTIFICATION
| Model | Body | (1) Engine | Engine ID | Fuel System | Ignition System |
|---|
| Astro & Safari | M,L | 4.3L (LB4) | Z | TBI | Magnetic |
| 4.3l (L35) | W | CPI | Magnetic |
| Blazer & Yukon | K | 5.7L (LO5) | K | TBI | Magnetic |
| 6.2L (LH6) | C | Diesel | N/A |
| 6.2L (LL4) | J | Diesel | N/A |
| Lumina APV, Silhouette, & Trans Sport | U | 3.1L (LG6) | D | TBI | Magnetic |
| 3.8L (L27) | L | PFI | C(3)I |
| Parcel/Delivery Commercial Van & Motorhome | P | 4.3L (LB4) | Z | TBI | Magnetic |
| 5.7L (LO5) | K | TBI | Magnetic |
| 6.2L (LL4) (3) | J | Diesel | N/A |
| 7.4L (L19) | N | TBI | Magnetic |
| Pickup (C/K 10/35) & Sierra | C,K | 4.3L (LB4) | Z | TBI | Magnetic |
| 5.0L (LO3) | H | TBI | Magnetic |
| 5.7L (LO5) | K | TBI | Magnetic |
| 5.7L (LO5) | K | CNG (4) | Magnetic |
| 6.2L (LH6) (2) | C | Diesel | N/A |
| 6.2L (LL4) (3) | J | Diesel | N/A |
| 6.5L (L65) | F | Turbo Diesel | N/A |
| 7.4L (L19) | N | TBI | Magnetic |
| Suburban | C,K | 5.7L (LO5) | K | TBI | Magnetic |
| 7.4L (L19) | N | TBI | Magnetic |
| S/T Series Blazer, Bravada, Jimmy, Pickup, Sonoma & Typhoon | S,T | 2.5L (L38) | A | TBI | Magnetic |
| 2.8L (LL2) | R | TBI | Magnetic |
| 4.3L (LB4) | Z | TBI | Magnetic |
| 4.3L (LB4) | Z | PFI Turbo | Magnetic |
| 4.3L (L35) | W | CPI | Magnetic |
| Van (10/35), Rally Van & Vandura | G | 4.3L (LB4) | Z | TBI | Magnetic |
| 5.0L (LO3) | H | TBI | Magnetic |
| 5.7L (LO5) | K | TBI | Magnetic |
| 6.2L (LH6) (2) | C | Diesel | N/A |
| 6.2L (LL4) (3) | J | Diesel | N/A |
| 7.4L (L19) | N | TBI | Magnetic |
| (1) Engine code is stamped on engine block. See ENGINE CODE LOCATION . (2) Light Duty emissions. (3) Heavy Duty emissions. (4) Compressed natural gas, limited information available. |
| (1) | Engine code is stamped on engine block. See ENGINE CODE LOCATION . |
| (4) | Compressed natural gas, limited information available. |
