GENERAL SPECIFICATIONS & VIN IDENTIFICATION
| Model | Body | Engine (1) | Eng. ID | Fuel System | Ignition System |
|---|
| Astro & Safari | M, L | 4.3L (L35) | W | CPI | (2) Magnetic |
| Lumina APV, Silhouette, & Trans Sport | U | 3.1L (LG6) | D | TBI | Magnetic |
| " | " | 3.8L (L27) | L | MFI | C(3)I |
| Parcel/Delivery Commercial Van & Motorhome (P3, P/G3) | P | 4.3L (LB4) | Z | TBI | Magnetic |
| " | " | 5.7L (LO5) | K | TBI | Magnetic |
| " | " | 6.5L (L65) (3) | F | Turbo Diesel | N/A |
| " | " | 7.4L (L19) | N | TBI | Magnetic |
| Pickup (C1/2/3, K1/2/3) & Sierra | C,K | 4.3L (LB4) | Z | TBI | (2) Magnetic |
| " | " | 5.0L (LO3) | H | TBI | Magnetic |
| " | " | 5.7L (LO5) | K | TBI | Magnetic |
| " | " | 6.5L (L65) (3) | F | Turbo Diesel | N/A |
| " | " | 6.5L (L49) (4) | P | Diesel | N/A |
| " | " | 6.5L (L56) (3) | S | Turbo Diesel | N/A |
| " | " | 7.4L (L19) | N | TBI | Magnetic |
| Suburban (C 1/2, K1/2) | C,K | 5.7L (LO5) | K | TBI | (2) Magnetic |
| " | " | 6.5L (L65) (4) | F | Turbo Diesel | N/A |
| " | " | 7.4L (L19) | N | TBI | Magnetic |
| S/T Series Blazer, Jimmy Pickup, Sonoma | S,T | 2.2L (LN2) (5) | 4 | MFI | Magnetic |
| " | " | 4.3L (LB4) | Z | TBI | Magnetic |
| " | " | 4.3L (L35) | W | CPI | (2) Magnetic |
| Tahoe & Yukon | C,K | 5.7L (LO5) | K | TBI | Magnetic |
| " | " | 6.5L (L56) (3) | F | Turbo Diesel | N/A |
| 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 |
| " | " | 6.5L (L49) (4) | P | Diesel | N/A |
| " | " | 7.4L (L19) | N | TBI | Magnetic |
| (1) Engine code is stamped on engine block. Refer to ENGINE CODE LOCATION . (2) Uses Enhance Electronic Ignition (OBD-II), utilizing a camshaft and crankshaft position sensor. (3) Heavy Duty emissions. (4) Light Duty emissions. (5) 2WD only. |
| (1) | Engine code is stamped on engine block. Refer to ENGINE CODE LOCATION . |
| (2) | Uses Enhance Electronic Ignition (OBD-II), utilizing a camshaft and crankshaft position sensor. |
