| DISTANCE FROM SECOND GROOVE TO STEM END | 0.7660 INCHES MINIMUM AND 0.8460 INCHES MAXIMUM |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 15.7 |
| CHAMFER LENGTH | 0.0100 INCHES NOMINAL |
| DISTANCE FROM FIRST GROOVE TO STEM END | 0.4210 INCHES MINIMUM AND 0.4810 INCHES MAXIMUM |
| FIRST GROOVE DIAMETER | 0.2970 INCHES MINIMUM AND 0.3030 INCHES MAXIMUM |
| FIRST GROOVE WIDTH | 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.8390 INCHES MINIMUM AND 0.8490 INCHES MAXIMUM |
| HEAD STYLE | FLAT |
| OUTSIDE DIAMETER | 0.8390 INCHES MINIMUM AND 0.8490 INCHES MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | 35.0 ROCKWELL C MINIMUM HEAD |
| METALLIC HARDNESS RATING AND LOCATION | 35.0 ROCKWELL C MINIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL C MINIMUM TIP |
| NECK RADIUS | 0.3440 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 45.0 |
| SECOND GROOVE DIAMETER | 0.2970 INCHES MINIMUM AND 0.3030 INCHES MAXIMUM |
| SECOND GROOVE WIDTH | 0.1050 INCHES MINIMUM AND 0.1150 INCHES MAXIMUM |
| STEM DIAMETER | 0.3400 INCHES NOMINAL |
| STEM LENGTH | 4.7810 INCHES MINIMUM AND 4.7910 INCHES MAXIMUM |
| STEM STYLE | DOUBLE GROOVED |