New
Normal
Tough idle
Strong mid range
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
Tough idle
Strong mid range
Customer is required to measure distributor shaft OD before purchasing Distributor Gear
| RPM Range | Part No. | Duration | with 1.62 Rocker | Lobe Sep Angle |
Lash
Measured Hot |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Advertised | @.050” | |||||||||
| IN | EX | IN | EX | IN | EX | IN | EX | |||
| 1600 - 4600 | 15890-8 | 276° | 277° | 213° | 218° | .468'' | .475'' | 108° | HYD | HYD |
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 Downloads tab for a Flat Tappet run in procedure check list.