| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| DISTANCE FROM MINOR DIAMETER TO STEM END | 0.2190 INCHES MINIMUM AND 0.2210 INCHES MAXIMUM |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.1875 INCHES NOMINAL |
| HEAD STYLE | FLAT |
| METALLIC HARDNESS RATING AND LOCATION | 46.0 ROCKWELL C MINIMUM TIP |
| METALLIC HARDNESS RATING AND LOCATION | 52.0 ROCKWELL C MAXIMUM TIP |
| MINOR DIAMETER LENGTH | 0.1875 INCHES NOMINAL |
| MINOR OUTSIDE DIAMETER | 0.2450 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM |
| NECK RADIUS | 0.3750 INCHES NOMINAL |
| OUTSIDE DIAMETER | 1.6875 INCHES MINIMUM AND 1.7025 INCHES MAXIMUM |
| SEAT ANGLE IN DEG | 44.5 |
| STEM DIAMETER | 0.3715 INCHES MINIMUM AND 0.3725 INCHES MAXIMUM |
| STEM LENGTH | 4.9844 INCHES NOMINAL |
| STEM STYLE | TAPERED |
| TAPER ANGLE IN DEG | 15.0 |