| DISTANCE FROM SLOT TO STEM END | 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0260 INCHES MINIMUM AND 0.0360 INCHES MAXIMUM |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.3075 INCHES MINIMUM AND 0.3175 INCHES MAXIMUM |
| HEAD STYLE | FLAT |
| III MATERIAL AND LOCATION | STEEL, FED STD 66, AISI/SAE 8645 STEM |
| III MATERIAL AND LOCATION | STEEL, FED STD 66, SAE EV4 HEAD |
| PROPRIETARY CHARACTERISTICS | PACS |
| METALLIC HARDNESS RATING AND LOCATION | 28.0 ROCKWELL C MINIMUM HEAD ERR-100 |
| METALLIC HARDNESS RATING AND LOCATION | 30.0 ROCKWELL C MINIMUM STEM ERR-100 |
| METALLIC HARDNESS RATING AND LOCATION | 35.0 ROCKWELL C MAXIMUM HEAD ERR-100 |
| METALLIC HARDNESS RATING AND LOCATION | 40.0 ROCKWELL C MAXIMUM STEM ERR-100 |
| NECK RADIUS | 0.5575 INCHES MINIMUM AND 0.5675 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 2.3075 INCHES MINIMUM AND 2.3175 INCHES MAXIMUM |
| SEAT ANGLE IN DEG | 30.0 |
| SLOT LENGTH | 0.3910 INCHES MINIMUM AND 0.3990 INCHES MAXIMUM |
| SLOT RADIUS | 0.0940 INCHES MINIMUM AND 0.0960 INCHES MAXIMUM |
| SLOT WIDTH | 0.1880 INCHES MINIMUM AND 0.1920 INCHES MAXIMUM |
| STEM DIAMETER | 0.4970 INCHES MINIMUM AND 0.4980 INCHES MAXIMUM |
| STEM LENGTH | 8.8468 INCHES MINIMUM AND 8.8618 INCHES MAXIMUM |
| STEM STYLE | SLOTTED |