Callies now offers various studs for your engine.
| OptiTorque | Material Grade | OptiTorque Tensile Strength |
| Patriot | 8740 Chrome Moly | 180-220 ksi |
| TorqueMaster | HSLA 6304 | 190-240 ksi |
| Item | Description | Material | Part # |
| Main Studs | Ford Godzilla - Cast iron | TorqueMaster | 10696 |
| Main Studs | Chevrolet LS - Gen III LS Cast Iron | Patriot Grade | 10593 |
| Main Studs | Chrysler - 5.7L-6.4L Hemi - Gen III Cast Iron Block | Patriot Grade | 10414 |
| Head Studs | Chrysler - 5.7L-6.4L Hemi - Gen III Cast Iron Block | Patriot Grade | 10625 |
| Head Studs | Chrysler - 5.7L-6.4L Hemi - Gen III Cast Iron Block | TorqueMaster | 10626 |
| Head Studs | SBC LS Studs - 2004 & Later - All In One Length | Patriot Grade | 10413P |
| Head Studs | LT Loose Stud Assy - 4” x 7/16-14 x 7/16-20” | TorqueMaster | 11086 |
| Head Studs | LT Loose Stud Assy - 5” x 7/16-14 x 7/16-20” | TorqueMaster | 11087 |
| Head Studs | LSR Loose Stud Assy - 7″ Head Stud - LSR 1/2″ | TorqueMaster | 10620 |
| Head Studs | LSR Loose Stud Assy - 12pt. Heavy Nuts .825″ collar .515″ height | TorqueMaster | 10372 |
| Head Studs | LSR Loose Stud Assy - Washer - Diameter .875″ x 1225″ thick | TorqueMaster | 10257 |
| Head Studs | Dodge Viper - 24 pcs | TorqueMaster | 11087 |
| Head Studs | Dodge Viper - Loose Stud Assy - ** | TorqueMaster | 10789 |
| Head Studs | Dodge Viper - Loose Stud Assy - 12pt Heavy Nuts .825″ collar .515″ height - ** | TorqueMaster | 10372 |
| Head Studs | Dodge Viper - Loose Stud Assy - Washer - Diameter .875″ x 1225″ thick - ** | TorqueMaster | 10257 |
| ** | Dodge Viper Studs also LSX compatible with Block / Heads using 1/2 - 20 | ||
Callies now offers various studs for your engine.
| OptiTorque | Material Grade | OptiTorque Tensile Strength |
| Patriot | 8740 Chrome Moly | 180-220 ksi |
| TorqueMaster | HSLA 6304 | 190-240 ksi |
| Item | Description | Material | Part # |
| Main Studs | Ford Godzilla - Cast iron | TorqueMaster | 10696 |
| Main Studs | Chevrolet LS - Gen III LS Cast Iron | Patriot Grade | 10593 |
| Main Studs | Chrysler - 5.7L-6.4L Hemi - Gen III Cast Iron Block | Patriot Grade | 10414 |
| Head Studs | Chrysler - 5.7L-6.4L Hemi - Gen III Cast Iron Block | Patriot Grade | 10625 |
| Head Studs | Chrysler - 5.7L-6.4L Hemi - Gen III Cast Iron Block | TorqueMaster | 10626 |
| Head Studs | SBC LS Studs - 2004 & Later - All In One Length | Patriot Grade | 10413P |
| Head Studs | LT Loose Stud Assy - 4” x 7/16-14 x 7/16-20” | TorqueMaster | 11086 |
| Head Studs | LT Loose Stud Assy - 5” x 7/16-14 x 7/16-20” | TorqueMaster | 11087 |
| Head Studs | LSR Loose Stud Assy - 7″ Head Stud - LSR 1/2″ | TorqueMaster | 10620 |
| Head Studs | LSR Loose Stud Assy - 12pt. Heavy Nuts .825″ collar .515″ height | TorqueMaster | 10372 |
| Head Studs | LSR Loose Stud Assy - Washer - Diameter .875″ x 1225″ thick | TorqueMaster | 10257 |
| Head Studs | Dodge Viper - 24 pcs | TorqueMaster | 11087 |
| Head Studs | Dodge Viper - Loose Stud Assy - ** | TorqueMaster | 10789 |
| Head Studs | Dodge Viper - Loose Stud Assy - 12pt Heavy Nuts .825″ collar .515″ height - ** | TorqueMaster | 10372 |
| Head Studs | Dodge Viper - Loose Stud Assy - Washer - Diameter .875″ x 1225″ thick - ** | TorqueMaster | 10257 |
| ** | Dodge Viper Studs also LSX compatible with Block / Heads using 1/2 - 20 | ||