New
Normal
For race applications
For max mid & upper RPM
Needs comp and after market heads etc
See fitting notes
When selecting retainers and locks, customer must check if engine has single or multi groove valves
| RPM Range | Part No. | Duration | with 1.73 Rocker | Lobe Sep Angle |
Lash
Measured Hot |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Advertised | @.050” | |||||||||
| IN | EX | IN | EX | IN | EX | IN | EX | |||
| 4000 - 7000 | 21819 | 291° | 298° | 259° | 266° | 0.623 | 0.623 | 108 | .016" | .016" |
Must use performance springs.
Must use performance retainers.
Machining required to fit these components.
Must use performance seal.
Check valve train geometry to establish length before ordering pushrods.
Converter stall speed should be equal to or greater than the minimum RPM of the cam power range