Crow Cams will be closed on Monday 8th June 2026 for King's Birthday Public Holiday.
Our online store will be open but orders will not be processed or despatched until Tuesday 9th June 2026.
Crow Cams will be closed on Monday 8th June 2026 for King's Birthday Public Holiday.
Our online store will be open but orders will not be processed or despatched until Tuesday 9th June 2026.
New
Normal
Good idle
Great mid range for mild engine
Needs comp, rockers & Hi-Stall
See fitting notes
Crow Cams recommend purchasing 2x bottles of ZDDP additive with any flat tappet cam, one for the initial run in and one for the first oil change thereafter
Good idle
Great mid range for mild engine
Needs comp, rockers & Hi-Stall
Due to the large variation in installed heights for these engines, please refer to our Valve Spring Specification Guide to help select the springs best suited to your application.
| RPM Range | Part No. | Duration | with 1.7 Rocker | Lobe Sep Angle |
Lash
Measured Hot |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Advertised | @.050” | |||||||||
| IN | EX | IN | EX | IN | EX | IN | EX | |||
| 2200 - 6000 | 21424 | 284° | 295° | 230° | 238° | .554" | .557" | 110° | HYD | HYD |
Must use performance springs.
Must use performance retainers.
Machining required to fit these components.
Crow Cams recommend purchasing 2x bottles of ZDDP additive with any flat tappet cam, one for the initial run in and one for the first oil change thereafter. View our Spec Sheet tab for a Flat Tappet run in procedure check list.
Due to the large variation in installed heights for these engines, please refer to our Valve Spring Specification Guide to help select the springs best suited to your application.