| DISTANCE FROM SECOND GROOVE TO STEM END | 0.5460 INCHES NOMINAL |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 30.0 |
| CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| DISTANCE FROM FIRST GROOVE TO STEM END | 0.3900 INCHES NOMINAL |
| FIRST GROOVE DIAMETER | 0.3630 INCHES MINIMUM AND 0.3690 INCHES MAXIMUM |
| FIRST GROOVE WIDTH | 0.0302 INCHES MINIMUM AND 0.0322 INCHES MAXIMUM |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.2490 INCHES MINIMUM AND 0.2910 INCHES MAXIMUM |
| HEAD STYLE | MUSHROOM |
| OUTSIDE DIAMETER | 1.5340 INCHES MINIMUM AND 1.5440 INCHES MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | 47.0 ROCKWELL C MINIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 47.0 ROCKWELL C MAXIMUM TIP |
| NECK RADIUS | 0.4375 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 44.0 |
| SECOND GROOVE DIAMETER | 0.3630 INCHES MINIMUM AND 0.3690 INCHES MAXIMUM |
| SECOND GROOVE WIDTH | 0.0302 INCHES MINIMUM AND 0.0322 INCHES MAXIMUM |
| STEM DIAMETER | 0.4335 INCHES MINIMUM AND 0.4345 INCHES MAXIMUM |
| STEM LENGTH | 5.6990 INCHES NOMINAL |
| THIRD GROOVE DIAMETER | 0.3840 INCHES MINIMUM AND 0.3940 INCHES MAXIMUM |
| THIRD GROOVE WIDTH | 4.0000 INCHES NOMINAL |