Compstar billet crankshafts for the Viper are meant for hardcore race applications. These shafts are machined from 4340 steel for durability and nitride surface hardened for excellent bearing life. Compstar Viper V-10’s are produced with 2.100 Chevy rod journal diameters and widths, and are available with either 10mm or 7/16 flange threads. Strokes available will be 4.200” and 3.960”. Compstar Viper V-10’s can be ordered with a (60-2) notch tone wheel configuration.
Compstar Viper V-10 Crankshaft
| Stroke | Main | Pins | Cammed for rod | Part # |
| 3.960 | 3.000 | 2.100 | 6.200 | KV3291H-CS |
| 4.200 | 3.000 | 2.100 | 6.200 | KV1291H-CS |
Viper Ultra Enforcer I-Beam
| Length | Journal | Typ. Wt. | Part # | |
| 6.200 | 2.123 | 764 g. | U14345 |
Viper Ultra H-Beam
| Length | Journal | Typ. Wt. | Part # | |
| 6.200 | 2.100 | 660 g. | U16120 |
Viper Compstar H-Beam
| Length | Journal | Typ. Wt. | Part # | |
| 6.150 | 2.125 | 630 g. | CSD6150GS2E1AH | |
| 6.250 | 2.125 | 628 g. | CSD6250GS2E1AH |
Viper Head Studs
| Description | Part # |
| Viper Head Studs - Torque Master Material | 10789 |
| Viper Head Stud Kit (24 pieces) - Torque Master Material | 11078 |
Compstar billet crankshafts for the Viper are meant for hardcore race applications. These shafts are machined from 4340 steel for durability and nitride surface hardened for excellent bearing life. Compstar Viper V-10’s are produced with 2.100 Chevy rod journal diameters and widths, and are available with either 10mm or 7/16 flange threads. Strokes available will be 4.200” and 3.960”. Compstar Viper V-10’s can be ordered with a (60-2) notch tone wheel configuration.
Compstar Viper V-10 Crankshaft
| Stroke | Main | Pins | Cammed for rod | Part # |
| 3.960 | 3.000 | 2.100 | 6.200 | KV3291H-CS |
| 4.200 | 3.000 | 2.100 | 6.200 | KV1291H-CS |
Viper Ultra Enforcer I-Beam
| Length | Journal | Typ. Wt. | Part # | |
| 6.200 | 2.123 | 764 g. | U14345 |
Viper Ultra H-Beam
| Length | Journal | Typ. Wt. | Part # | |
| 6.200 | 2.100 | 660 g. | U16120 |
Viper Compstar H-Beam
| Length | Journal | Typ. Wt. | Part # | |
| 6.150 | 2.125 | 630 g. | CSD6150GS2E1AH | |
| 6.250 | 2.125 | 628 g. | CSD6250GS2E1AH |
Viper Head Studs
| Description | Part # |
| Viper Head Studs - Torque Master Material | 10789 |
| Viper Head Stud Kit (24 pieces) - Torque Master Material | 11078 |