1978 |
| 6 | Platinum Plus
Gap 0.035 in
Heavy Duty |
4.1L l6 Gas OHV
Platinum Plus
Gap 0.035 in
Heavy Duty
6 Per Vehicle
|
1978 |
| 6 | Platinum Plus
Gap 0.035 in
|
4.8L l6 Gas OHV
Platinum Plus
Gap 0.035 in
6 Per Vehicle
|
1978 |
| 8 | Platinum Plus
Gap 0.045 in
|
5.0L V8 Gas OHV
Platinum Plus
Gap 0.045 in
8 Per Vehicle
|
1978 |
GMC C25
5.7L V8 Gas OHV,
6.6L V8 Gas OHV
| 1 | Platinum Plus Spark Plug
Gap .045
Heavy Duty
without California Emissions |
5.7L V8 Gas OHV,
6.6L V8 Gas OHV
Platinum Plus Spark Plug
Gap .045
Heavy Duty
without California Emissions
1 Per Vehicle
|
1978 |
GMC C25
5.7L V8 Gas OHV,
6.6L V8 Gas OHV
| 1 | Platinum Plus Spark Plug
Gap .060
with California Emissions |
5.7L V8 Gas OHV,
6.6L V8 Gas OHV
Platinum Plus Spark Plug
Gap .060
with California Emissions
1 Per Vehicle
|
1978 |
| 8 | Platinum Plus
Gap 0.045 in
Heavy Duty |
7.4L V8 Gas OHV
Platinum Plus
Gap 0.045 in
Heavy Duty
8 Per Vehicle
|
