| Vehicle | 
Trim | 
Year | 
Engine | 
| C1500 | 
Base | 
1980/1984 | 
L6 CC:- CID:250 4.1L OHV CARB 1BBL Naturally Aspirated GAS | 
| C1500 | 
Base | 
1980/1980 | 
L6 CC:- CID:292 4.8L OHV CARB 1BBL Naturally Aspirated GAS | 
| C1500 | 
Base | 
1980/1981 | 
V8 CC:- CID:305 5.0L OHV CARB 2BBL Naturally Aspirated GAS | 
| C1500 | 
Base | 
1981/1984 | 
V8 CC:- CID:305 5.0L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Base | 
1980/1980 | 
V8 CC:- CID:350 5.7L OHV CARB 2BBL Naturally Aspirated GAS | 
| C1500 | 
Base | 
1980/1984 | 
V8 CC:- CID:350 5.7L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Base | 
1980/1981 | 
V8 CC:- CID:350 5.7L OHV FI MFI Naturally Aspirated DIESEL | 
| C1500 | 
Base | 
1982/1984 | 
V8 CC:- CID:379 6.2L OHV FI MFI Naturally Aspirated DIESEL | 
| C1500 | 
Base | 
1980/1980 | 
V8 CC:- CID:400 6.6L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Base | 
1980/1980 | 
V8 CC:- CID:454 7.4L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Heavy Half | 
1980/1980 | 
L6 CC:- CID:250 4.1L OHV CARB 1BBL Naturally Aspirated GAS | 
| C1500 | 
Heavy Half | 
1980/1980 | 
L6 CC:- CID:292 4.8L OHV CARB 1BBL Naturally Aspirated GAS | 
| C1500 | 
Heavy Half | 
1980/1980 | 
V8 CC:- CID:305 5.0L OHV CARB 2BBL Naturally Aspirated GAS | 
| C1500 | 
Heavy Half | 
1980/1980 | 
V8 CC:- CID:350 5.7L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Heavy Half | 
1980/1980 | 
V8 CC:- CID:400 6.6L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Heavy Half | 
1980/1980 | 
V8 CC:- CID:454 7.4L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
High Sierra | 
1980/1984 | 
L6 CC:- CID:250 4.1L OHV CARB 1BBL Naturally Aspirated GAS | 
| C1500 | 
High Sierra | 
1980/1980 | 
L6 CC:- CID:292 4.8L OHV CARB 1BBL Naturally Aspirated GAS | 
| C1500 | 
High Sierra | 
1980/1981 | 
V8 CC:- CID:305 5.0L OHV CARB 2BBL Naturally Aspirated GAS | 
| C1500 | 
High Sierra | 
1981/1984 | 
V8 CC:- CID:305 5.0L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
High Sierra | 
1980/1980 | 
V8 CC:- CID:350 5.7L OHV CARB 2BBL Naturally Aspirated GAS | 
| C1500 | 
High Sierra | 
1980/1984 | 
V8 CC:- CID:350 5.7L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
High Sierra | 
1980/1981 | 
V8 CC:- CID:350 5.7L OHV FI MFI Naturally Aspirated DIESEL | 
| C1500 | 
High Sierra | 
1982/1984 | 
V8 CC:- CID:379 6.2L OHV FI MFI Naturally Aspirated DIESEL | 
| C1500 | 
High Sierra | 
1980/1980 | 
V8 CC:- CID:400 6.6L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
High Sierra | 
1980/1980 | 
V8 CC:- CID:454 7.4L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Classic | 
1980/1984 | 
L6 CC:- CID:250 4.1L OHV CARB 1BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Classic | 
1980/1980 | 
L6 CC:- CID:292 4.8L OHV CARB 1BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Classic | 
1980/1981 | 
V8 CC:- CID:305 5.0L OHV CARB 2BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Classic | 
1981/1984 | 
V8 CC:- CID:305 5.0L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Classic | 
1980/1980 | 
V8 CC:- CID:350 5.7L OHV CARB 2BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Classic | 
1980/1984 | 
V8 CC:- CID:350 5.7L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Classic | 
1980/1981 | 
V8 CC:- CID:350 5.7L OHV FI MFI Naturally Aspirated DIESEL | 
| C1500 | 
Sierra Classic | 
1982/1984 | 
V8 CC:- CID:379 6.2L OHV FI MFI Naturally Aspirated DIESEL | 
| C1500 | 
Sierra Classic | 
1980/1980 | 
V8 CC:- CID:400 6.6L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Classic | 
1980/1980 | 
V8 CC:- CID:454 7.4L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Grande | 
1980/1982 | 
L6 CC:- CID:250 4.1L OHV CARB 1BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Grande | 
1980/1980 | 
L6 CC:- CID:292 4.8L OHV CARB 1BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Grande | 
1980/1981 | 
V8 CC:- CID:305 5.0L OHV CARB 2BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Grande | 
1981/1982 | 
V8 CC:- CID:305 5.0L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Grande | 
1980/1980 | 
V8 CC:- CID:350 5.7L OHV CARB 2BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Grande | 
1980/1982 | 
V8 CC:- CID:350 5.7L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Grande | 
1980/1981 | 
V8 CC:- CID:350 5.7L OHV FI MFI Naturally Aspirated DIESEL | 
| C1500 | 
Sierra Grande | 
1982/1982 | 
V8 CC:- CID:379 6.2L OHV FI MFI Naturally Aspirated DIESEL | 
| C1500 | 
Sierra Grande | 
1980/1980 | 
V8 CC:- CID:400 6.6L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Sierra Grande | 
1980/1980 | 
V8 CC:- CID:454 7.4L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Street Coupe | 
1980/1982 | 
L6 CC:- CID:250 4.1L OHV CARB 1BBL Naturally Aspirated GAS | 
| C1500 | 
Street Coupe | 
1980/1980 | 
L6 CC:- CID:292 4.8L OHV CARB 1BBL Naturally Aspirated GAS | 
| C1500 | 
Street Coupe | 
1980/1981 | 
V8 CC:- CID:305 5.0L OHV CARB 2BBL Naturally Aspirated GAS | 
| C1500 | 
Street Coupe | 
1981/1982 | 
V8 CC:- CID:305 5.0L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Street Coupe | 
1980/1980 | 
V8 CC:- CID:350 5.7L OHV CARB 2BBL Naturally Aspirated GAS | 
| C1500 | 
Street Coupe | 
1980/1982 | 
V8 CC:- CID:350 5.7L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Street Coupe | 
1980/1981 | 
V8 CC:- CID:350 5.7L OHV FI MFI Naturally Aspirated DIESEL | 
| C1500 | 
Street Coupe | 
1982/1982 | 
V8 CC:- CID:379 6.2L OHV FI MFI Naturally Aspirated DIESEL | 
| C1500 | 
Street Coupe | 
1980/1980 | 
V8 CC:- CID:400 6.6L OHV CARB 4BBL Naturally Aspirated GAS | 
| C1500 | 
Street Coupe | 
1980/1980 | 
V8 CC:- CID:454 7.4L OHV CARB 4BBL Naturally Aspirated GAS |