New
Normal
Street /strip cam
Suits 396 - 427ci engine
Needs comp and after market heads
See fitting notes
Street / strip cam
Suits 396 - 427ci engine
Needs comp and after market heads
See fitting notes
| RPM Range | Part No. | Duration | with 1.70 Rocker | Lobe Sep Angle |
Lash
Measured Hot |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Advertised | @.050” | |||||||||
| IN | EX | IN | EX | IN | EX | IN | EX | |||
| 3600 - 6800 | 21387 | 298° | 303° | 259° | 265° | 0.648" | 0.648" | 108 | .016" | .016" |
Must use performance springs.
Must use performance retainers.
Machining required to fit these components.
Must use performance seals.
Check valve train geometry before ordering pushrods.
Pushrod length varied in this model. Check length before ordering.
Converter stall speed should be equal to or greater than the minimum RPM of the cam power range