| Make | GMC |
| Model | K25/K2500 PICKUP |
| Submodel | SILVERADO |
| Beginning Year | 1971 |
| Ending Year | 1971 |
| Engine Type | V8 |
| Liter | 6.6 |
| CID | 402 |
| CC | 6588 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.6L/402 |
| Drivetrain | 4WD |
| Engine VIN Code | K |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
| Application Notes | 2 door models. |
|
| Make | GMC |
| Model | K25/K2500 PICKUP |
| Submodel | SILVERADO |
| Beginning Year | 1972 |
| Ending Year | 1974 |
| Engine Type | V8 |
| Liter | 6.6 |
| CID | 402 |
| CC | 6588 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.6L/402 |
| Drivetrain | 4WD |
| Engine VIN Code | U |
|
| Make | GMC |
| Model | K25/K2500 PICKUP |
| Submodel | SILVERADO |
| Beginning Year | 1972 |
| Ending Year | 1972 |
| Engine Type | V8 |
| Liter | 6.6 |
| CID | 402 |
| CC | 7439 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.6L/402 |
| Drivetrain | 4WD |
| Engine VIN Code | U |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
|
| Make | GMC |
| Model | K25/K2500 PICKUP |
| Submodel | SILVERADO |
| Beginning Year | 1974 |
| Ending Year | 1974 |
| Engine Type | V8 |
| Liter | 6.5 |
| CID | 396 |
| CC | 7439 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.5L/396 |
| Drivetrain | RWD |
| Engine VIN Code | L |
|
| Make | GMC |
| Model | K25/K2500 PICKUP |
| Submodel | SILVERADO |
| Beginning Year | 1980 |
| Ending Year | 1980 |
| Engine Type | V8 |
| Liter | 6.5 |
| CID | 396 |
| CC | 7439 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.5L/396 |
| Drivetrain | 4WD |
| Engine VIN Code | L |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
|
| Make | GMC |
| Model | K25/K2500 PICKUP |
| Submodel | HIGH SIERRA |
| Beginning Year | 1980 |
| Ending Year | 1980 |
| Engine Type | V8 |
| Liter | 6.5 |
| CID | 396 |
| CC | 6489 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.5L/396 |
| Drivetrain | 4WD |
| Engine VIN Code | S |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
|
| Make | GMC |
| Model | K25/K2500 PICKUP |
| Submodel | SIERRA CLASSIC |
| Beginning Year | 1980 |
| Ending Year | 1980 |
| Engine Type | V8 |
| Liter | 6.6 |
| CID | 402 |
| CC | 7441 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.6L/402 |
| Drivetrain | 4WD |
| Engine VIN Code | S |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Application Notes | 2 door models. |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
|
| Make | GMC |
| Model | K25/K2500 PICKUP |
| Submodel | SIERRA GRANDE |
| Beginning Year | 1980 |
| Ending Year | 1980 |
| Engine Type | V8 |
| Liter | 6.6 |
| CID | 402 |
| CC | 7441 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.6L/402 |
| Drivetrain | 4WD |
| Engine VIN Code | S |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Application Notes | 2 door models. |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
|
| Make | GMC |
| Model | K25/K2500 PICKUP |
| Submodel | HIGH SIERRA |
| Beginning Year | 1976 |
| Ending Year | 1976 |
| Engine Type | V8 |
| Liter | 6.6 |
| CID | 402 |
| CC | 6588 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.6L/402 |
| Drivetrain | 4WD |
| Engine VIN Code | S |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Application Notes | 2 door models. |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
|
| Make | GMC |
| Model | K25/K2500 PICKUP |
| Submodel | SIERRA CLASSIC |
| Beginning Year | 1976 |
| Ending Year | 1976 |
| Engine Type | V8 |
| Liter | 6.6 |
| CID | 402 |
| CC | 7441 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.6L/402 |
| Drivetrain | 4WD |
| Engine VIN Code | Z |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Application Notes | 2 door models. |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
|
| Make | GMC |
| Model | K25/K2500 PICKUP |
| Submodel | HIGH SIERRA |
| Beginning Year | 1976 |
| Ending Year | 1976 |
| Engine Type | V8 |
| Liter | 6.6 |
| CID | 402 |
| CC | 7441 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.6L/402 |
| Drivetrain | 4WD |
| Engine VIN Code | S |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Application Notes | 2 door models. |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
|
| Make | GMC |
| Model | K25 |
| Submodel | HIGH SIERRA |
| Beginning Year | 1976 |
| Ending Year | 1976 |
| Engine Type | V8 |
| Liter | 6.6 |
| CID | 402 |
| CC | 6588 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.6L/402 |
| Drivetrain | 4WD |
| Engine VIN Code | Yes |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Application Notes | 2 door models. |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
|
| Make | GMC |
| Model | K25 |
| Submodel | SIERRA CLASSIC |
| Beginning Year | 1976 |
| Ending Year | 1976 |
| Engine Type | V8 |
| Liter | 7.4 |
| CID | 454 |
| CC | 7439 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 7.4L/454 |
| Drivetrain | 4WD |
| Engine VIN Code | S |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Application Notes | 2 door models. |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
|
| Make | GMC |
| Model | K25 |
| Submodel | HIGH SIERRA |
| Beginning Year | 1976 |
| Ending Year | 1976 |
| Engine Type | V8 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.5L/396 |
| Drivetrain | 4WD |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Application Notes | 2 door models. |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
| Liter | 6.5 |
| CID | 396 |
| CC | 6489 |
| Engine VIN Code | Yes |
|
| Make | GMC |
| Model | K25 |
| Submodel | HIGH SIERRA |
| Beginning Year | 1977 |
| Ending Year | 1978 |
| Engine Type | V8 |
| Liter | 6.5 |
| CID | 396 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.5L/396 |
| Drivetrain | 4WD |
| Engine VIN Code | E |
| CC | 6489 |
|
| Make | GMC |
| Model | K25 |
| Submodel | SIERRA CLASSIC |
| Beginning Year | 1969 |
| Ending Year | 1969 |
| Engine Type | V8 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.5L/396 |
| Drivetrain | 4WD |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
| Liter | 6.5 |
| CID | 396 |
| CC | 6489 |
| Engine VIN Code | Yes |
|
| Make | GMC |
| Model | K25 |
| Submodel | SIERRA CLASSIC |
| Beginning Year | 1977 |
| Ending Year | 1969 |
| Engine Type | V8 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.5L/396 |
| Drivetrain | 4WD |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
| Liter | 6.5 |
| CID | 396 |
| CC | 6489 |
| Engine VIN Code | E |
|
| Make | GMC |
| Model | K25 |
| Submodel | SIERRA GRANDE |
| Beginning Year | 1969 |
| Ending Year | 1969 |
| Engine Type | V8 |
| Liter | 6.5 |
| CID | 396 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.5L/396 |
| Drivetrain | 4WD |
| Engine VIN Code | E |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
| CC | 6489 |
|
| Make | GMC |
| Model | K25 |
| Submodel | SIERRA GRANDE |
| Beginning Year | 1969 |
| Ending Year | 1978 |
| Engine Type | V8 |
| Liter | 6.5 |
| CID | 396 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.5L/396 |
| Drivetrain | 4WD |
| Engine VIN Code | S |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
| CC | 6489 |
|
| Make | GMC |
| Model | K35/K3500 PICKUP |
| Submodel | BASE |
| Beginning Year | 1969 |
| Ending Year | 1969 |
| Engine Type | V8 |
| Liter | 6.5 |
| CID | 396 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.5L/396 |
| Drivetrain | 4WD |
| Engine VIN Code | Yes |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
| CC | 6489 |
|
| Make | GMC |
| Model | K35/K3500 PICKUP |
| Submodel | BASE |
| Beginning Year | 1969 |
| Ending Year | 1969 |
| Engine Type | V8 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.5L/396 |
| Drivetrain | RWD |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
| Liter | 6.5 |
| CID | 396 |
| Engine VIN Code | Yes |
| CC | 6489 |
|
| Make | GMC |
| Model | K35/K3500 PICKUP |
| Submodel | BASE |
| Beginning Year | 1971 |
| Ending Year | 1971 |
| Engine Type | V8 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.6L/402 |
| Drivetrain | 4WD |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
| Liter | 6.6 |
| CID | 402 |
| Engine VIN Code | Yes |
| CC | 6588 |
|
| Make | GMC |
| Model | K35/K3500 PICKUP |
| Submodel | SCOTTSDALE |
| Beginning Year | 1970 |
| Ending Year | 1972 |
| Engine Type | V8 |
| Liter | 6.6 |
| CID | 402 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.6L/402 |
| Drivetrain | 4WD |
| Engine VIN Code | Yes |
| CC | 6588 |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
|
| Make | GMC |
| Model | K35/K3500 PICKUP |
| Submodel | SCOTTSDALE |
| Beginning Year | 1970 |
| Ending Year | 1971 |
| Engine Type | V8 |
| Liter | 6.6 |
| CID | 402 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.6L/402 |
| Drivetrain | RWD |
| Engine VIN Code | U |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |
| CC | 6588 |
|
| Make | GMC |
| Model | K35/K3500 PICKUP |
| Submodel | DELUXE |
| Beginning Year | 1970 |
| Ending Year | 1971 |
| Engine Type | V8 |
| Liter | 6.6 |
| CID | 402 |
| CC | 6588 |
| Engine Family | Chevy big block Mark IV |
| Engine Size | 6.6L/402 |
| Drivetrain | RWD |
| Engine VIN Code | K |
| Power Steering | Yes |
| Power Brakes (application) | Yes |
| Air Conditioning | Yes |
| Standard Transmission Column Shift | No |
| Standard Transmission Floor Shift | Yes |
| Automatic Transmission Column Shift | Yes |
| Automatic Transmission Floor Shift | No |
| Footnotes | 117 - Reducers available with oxygen sensor on 1980 and later models. 2 1/2 in. bolt-on part # HOK-11045HKR, 3 in. bolt-on part # HOK-11046HKR, 2 1/4 in. slip-on part # HOK-11141HKR or 2 1/2 in. slip-on part # HOK-11140HKR. |