| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| << < 41 42 43 44 45 46 47 48 49 50 > >> | |||||
| 1981 | Buick | Electra | V6 252 4.1L | To Converter | |
| 1981 | Buick | Electra | V6 252 4.1L | To Engine | |
| 1981 | Buick | Electra | V8 307 5.0L | To Converter | |
| 1981 | Buick | Electra | V8 307 5.0L | To Engine | |
| 1981 | Buick | Estate Wagon | V8 307 5.0L | To Converter | |
| 1981 | Buick | Estate Wagon | V8 307 5.0L | To Engine | |
| 1981 | Buick | LeSabre | V6 231 3.8L (3800cc) | To Converter | |
| 1981 | Buick | LeSabre | V6 231 3.8L (3800cc) | To Engine | |
| 1981 | Buick | LeSabre | V6 252 4.1L | To Converter | |
| 1981 | Buick | LeSabre | V6 252 4.1L | To Engine | |
| 1981 | Buick | LeSabre | V8 307 5.0L | To Converter | |
| 1981 | Buick | LeSabre | V8 307 5.0L | To Engine | |
| 1981 | Buick | Regal | Naturally Aspirated; V6 231 3.8L (3800cc) | To Engine | |
| 1981 | Buick | Regal | V6 231 3.8L (3800cc) | To Converter | |
| 1981 | Buick | Regal | V8 265 4.3L | To Converter | |
| 1981 | Buick | Regal | V8 265 4.3L | To Engine | |
| 1981 | Buick | Riviera | V6 231 3.8L (3800cc) | To Converter | |
| 1981 | Buick | Riviera | V6 252 4.1L | To Converter | |
| 1981 | Buick | Riviera | V6 252 4.1L | To Engine | |
| 1981 | Buick | Riviera | V8 307 5.0L | To Converter | |
| 1981 | Buick | Riviera | V8 307 5.0L | To Engine | |
| 1981 | Buick | Skylark | To Converter | ||
| 1981 | Buick | Skylark | To Engine | ||
| 1981 | Cadillac | DeVille | V6 252 4.1L | To Converter | |
| 1981 | Cadillac | DeVille | V6 252 4.1L | To Engine | |
| 1981 | Cadillac | DeVille | V8 368 6.0L | To Converter | |
| 1981 | Cadillac | Eldorado | V6 252 4.1L | To Converter | |
| 1981 | Cadillac | Eldorado | V6 252 4.1L | To Engine | |
| 1981 | Cadillac | Eldorado | V8 368 6.0L | To Converter | |
| 1981 | Cadillac | Fleetwood | V6 252 4.1L | To Converter | |
| 1981 | Cadillac | Fleetwood | V6 252 4.1L | To Engine | |
| 1981 | Cadillac | Fleetwood | V8 368 6.0L | To Converter | |
| 1981 | Cadillac | Seville | V6 252 4.1L | To Converter | |
| 1981 | Cadillac | Seville | V6 252 4.1L | To Engine | |
| 1981 | Cadillac | Seville | V8 368 6.0L | To Converter | |
| 1981 | Chevrolet | C10 | L6 250 4.1L | To Engine | |
| 1981 | Chevrolet | C10 | V8 305 5.0L | To Engine | |
| 1981 | Chevrolet | C10 Suburban | To Engine | ||
| 1981 | Chevrolet | C20 | L6 250 4.1L | To Engine | |
| 1981 | Chevrolet | C20 | L6 292 4.8L | To Engine | |
| 1981 | Chevrolet | C20 | V8 305 5.0L | To Engine | |
| 1981 | Chevrolet | C20 | V8 454 7.4L | To Engine | |
| 1981 | Chevrolet | C20 | VIN L | To Engine | |
| 1981 | Chevrolet | C20 | VIN M | To Engine | |
| 1981 | Chevrolet | C20 Suburban | To Engine | ||
| 1981 | Chevrolet | C30 | L6 292 4.8L | To Engine | |
| 1981 | Chevrolet | C30 | V8 454 7.4L | To Engine | |
| 1981 | Chevrolet | C30 | VIN M | To Engine | |
| 1981 | Chevrolet | C60 | V8 366 6.0L | To Engine | |
| 1981 | Chevrolet | C70 | V8 366 6.0L | To Engine | |