New
Normal
Performance cam
Good mid to upper RPM range
Choppy idle
Need manifold & headers, comp etc
See fitting notes
| RPM Range | Part No. | Duration | with 1.65 Rocker | Lobe Sep Angle | Lash | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Advertised | @.050” | |||||||||
| IN | EX | IN | EX | IN | EX | IN | EX | |||
| 3700 - 7000 | 51571 | 309° | 307° | 245° | 244° | 0.630 | 0.627 | 110 | HYD | HYD |
Must use performance springs.
Must use performance retainers.
Machining required to fit these components.
Must use performance seal.
Converter stall speed should be equal to or greater than the minimum RPM of the cam power range