| DISTANCE FROM SECOND GROOVE TO STEM END | 0.6370 INCHES MINIMUM AND 0.7860 INCHES MAXIMUM |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 30.0 |
| CHAMFER LENGTH | 0.0060 INCHES NOMINAL |
| DISTANCE FROM FIRST GROOVE TO STEM END | 0.4380 INCHES MINIMUM AND 0.4680 INCHES MAXIMUM |
| FIRST GROOVE DIAMETER | 0.4220 INCHES MINIMUM AND 0.4280 INCHES MAXIMUM |
| FIRST GROOVE WIDTH | 0.0500 INCHES MINIMUM AND 0.0625 INCHES MAXIMUM |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.2740 INCHES MINIMUM AND 0.2840 INCHES MAXIMUM |
| HEAD STYLE | MUSHROOM |
| OUTSIDE DIAMETER | 2.1360 INCHES MINIMUM AND 2.1460 INCHES MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | 54.0 ROCKWELL C MINIMUM TIP |
| NECK RADIUS | 0.3750 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 46.0 |
| SECOND GROOVE DIAMETER | 0.4550 INCHES MINIMUM AND 0.4600 INCHES MAXIMUM |
| SECOND GROOVE WIDTH | 0.0350 INCHES MINIMUM AND 0.0400 INCHES MAXIMUM |
| STEM DIAMETER | 0.4880 INCHES MINIMUM AND 0.4930 INCHES MAXIMUM |
| STEM LENGTH | 7.0795 INCHES MINIMUM AND 7.0945 INCHES MAXIMUM |
| STEM STYLE | DOUBLE GROOVED |