| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| DISTANCE FROM FIRST GROOVE TO STEM END | 0.1490 INCHES NOMINAL |
| DISTANCE FROM SECOND GROOVE TO STEM END | 0.3090 INCHES NOMINAL |
| DISTANCE FROM THIRD GROOVE TO STEM END | 0.4690 INCHES NOMINAL |
| FIRST GROOVE DIAMETER | 0.3390 INCHES MINIMUM AND 0.3440 INCHES MAXIMUM |
| FIRST GROOVE WIDTH | 0.1000 INCHES MINIMUM AND 0.1020 INCHES MAXIMUM |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.2620 INCHES MINIMUM AND 0.2820 INCHES MAXIMUM |
| HEAD STYLE | CONCAVE |
| METALLIC HARDNESS RATING AND LOCATION | 70.0 ROCKWELL C MINIMUM TIP |
| METALLIC HARDNESS RATING AND LOCATION | 80.0 ROCKWELL C MAXIMUM TIP |
| MINOR OUTSIDE DIAMETER | 0.3906 INCHES NOMINAL |
| NECK RADIUS | 0.8750 INCHES NOMINAL |
| OUTSIDE DIAMETER | 0.7470 INCHES MINIMUM AND 2.7530 INCHES MAXIMUM |
| SEAT ANGLE IN DEG | 30.0 |
| SECOND GROOVE DIAMETER | 0.3390 INCHES MINIMUM AND 0.3440 INCHES MAXIMUM |
| SECOND GROOVE WIDTH | 0.1000 INCHES MINIMUM AND 0.1020 INCHES MAXIMUM |
| STEM DIAMETER | 0.5270 INCHES MINIMUM AND 0.5280 INCHES MAXIMUM |
| STEM LENGTH | 5.8340 INCHES MINIMUM AND 5.8390 INCHES MAXIMUM |
| STEM STYLE | TAPERED MULTI-GROOVED |
| TAPER ANGLE IN DEG | 20.0 |
| THIRD GROOVE DIAMETER | 0.3390 INCHES MINIMUM AND 0.3440 INCHES MAXIMUM |
| THIRD GROOVE WIDTH | 0.1000 INCHES MINIMUM AND 0.1020 INCHES MAXIMUM |