| DISTANCE FROM SECOND GROOVE TO STEM END | 0.5250 INCHES MINIMUM AND 0.5320 INCHES MAXIMUM |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 30.0 |
| CHAMFER LENGTH | 0.0290 INCHES NOMINAL |
| DISTANCE FROM FIRST GROOVE TO STEM END | 0.2140 INCHES MINIMUM AND 0.2190 INCHES MAXIMUM |
| FIRST GROOVE DIAMETER | 0.3020 INCHES MINIMUM AND 0.3080 INCHES MAXIMUM |
| FIRST GROOVE WIDTH | 0.0940 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.1870 INCHES MINIMUM AND 0.2020 INCHES MAXIMUM |
| HEAD STYLE | INVERTED CONE |
| OUTSIDE DIAMETER | 1.4320 INCHES MINIMUM AND 1.4420 INCHES MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | 30.0 ROCKWELL C MINIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 40.0 ROCKWELL C MAXIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 48.0 ROCKWELL C MINIMUM TIP |
| NECK RADIUS | 0.3125 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 45.0 |
| SECOND GROOVE DIAMETER | 0.3020 INCHES MINIMUM AND 0.3080 INCHES MAXIMUM |
| SECOND GROOVE WIDTH | 0.0940 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM |
| STEM DIAMETER | 0.3715 INCHES MINIMUM AND 0.3720 INCHES MAXIMUM |
| STEM LENGTH | 5.1090 INCHES NOMINAL |
| STEM STYLE | DOUBLE GROOVED |