| DISTANCE FROM GROOVE TO STEM END | 0.2000 INCHES MINIMUM AND 0.2020 INCHES MAXIMUM |
| DISTANCE FROM MINOR DIAMETER TO STEM END | 0.4810 INCHES MINIMUM AND 0.5130 INCHES MAXIMUM |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| GROOVE DIAMETER | 0.3380 INCHES MINIMUM AND 0.3420 INCHES MAXIMUM |
| GROOVE WIDTH | 0.1350 INCHES MINIMUM AND 0.1450 INCHES MAXIMUM |
| HEAD HEIGHT | 0.1950 INCHES MINIMUM AND 0.2020 INCHES MAXIMUM |
| HEAD STYLE | CONCAVE |
| OUTSIDE DIAMETER | 2.3700 INCHES MINIMUM AND 2.3800 INCHES MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | 28.0 ROCKWELL C MINIMUM HEAD |
| METALLIC HARDNESS RATING AND LOCATION | 28.0 ROCKWELL C MINIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 35.0 ROCKWELL C MAXIMUM HEAD |
| METALLIC HARDNESS RATING AND LOCATION | 35.0 ROCKWELL C MAXIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 43.0 ROCKWELL C MINIMUM TIP |
| MINOR DIAMETER LENGTH | 0.1460 INCHES MINIMUM AND 0.1660 INCHES MAXIMUM |
| MINOR OUTSIDE DIAMETER | 0.4590 INCHES MINIMUM AND 0.4790 INCHES MAXIMUM |
| NECK RADIUS | 0.3750 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 45.0 |
| STEM DIAMETER | 0.4955 INCHES MINIMUM AND 0.4965 INCHES MAXIMUM |
| STEM LENGTH | 6.0380 INCHES MINIMUM AND 6.0750 INCHES MAXIMUM |
| TAPER ANGLE IN DEG | 15.0 |