New
Normal
Improved mid/top end power
Twin Cat exhaust for maximum performance
Standard torque converter or 2000 hi stall
See fitting notes. Use DG4 oil pump gear
Improved mid/top end power
Twin Cat exhaust for maximum performance
Standard torque converter or 2000 hi stall
See fitting notes: Use DG4 oil pump gear
| RPM Range | Part No. | Duration | with 1.65 Rocker | Lobe Sep Angle | Lash | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Advertised | @.050” | |||||||||
| IN | EX | IN | EX | IN | EX | IN | EX | |||
| 2000 - 6500 | 4903 | 278° | 274° | 222° | 217° | 0.548 | 0.548 | 112 | HYD | HYD |
Must use performance springs.
Must use performance retainers.
Converter stall speed should be equal to or greater than the minimum RPM of the cam power range