| DISTANCE FROM SECOND GROOVE TO STEM END | 0.5040 INCHES NOMINAL |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 15.0 |
| CHAMFER LENGTH | 0.0020 INCHES MINIMUM AND 0.0100 INCHES MAXIMUM |
| DISTANCE FROM FIRST GROOVE TO STEM END | 0.2590 INCHES NOMINAL |
| FIRST GROOVE DIAMETER | 0.2970 INCHES MINIMUM AND 0.3030 INCHES MAXIMUM |
| FIRST GROOVE WIDTH | 0.1050 INCHES MINIMUM AND 0.1150 INCHES MAXIMUM |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.1430 INCHES MINIMUM AND 0.1580 INCHES MAXIMUM |
| HEAD STYLE | FLAT |
| OUTSIDE DIAMETER | 1.7150 INCHES MINIMUM AND 1.7250 INCHES MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | 27.0 ROCKWELL C MINIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 27.0 ROCKWELL C MINIMUM HEAD |
| 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 | 50.0 ROCKWELL C MINIMUM TIP |
| NECK RADIUS | 0.5800 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 45.0 |
| SECOND GROOVE DIAMETER | 0.2970 INCHES MINIMUM AND 0.3030 INCHES MAXIMUM |
| SECOND GROOVE WIDTH | 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM |
| STEM DIAMETER | 0.3715 INCHES MINIMUM AND 0.3722 INCHES MAXIMUM |
| STEM LENGTH | 4.7444 INCHES MINIMUM AND 4.7794 INCHES MAXIMUM |
| STEM STYLE | DOUBLE GROOVED |