New
Normal
For good performance & driveability
Suits modified engine
See fitting notes
| RPM Range | Part No. | Duration | with 1.5 Rocker | Lobe Sep Angle |
Lash
Measured Hot |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Advertised | @.050” | |||||||||
| IN | EX | IN | EX | IN | EX | IN | EX | |||
| 1800 - 4800 | 63603 | 280° | 280° | 214° | 214° | .445'' | .441'' | 110° | HYD | HYD |
Must use performance springs.
SHELF GRINDS ARE TO SUIT 250 ENGINE. SPECIAL GRINDS AVAILABLE FOR 220 & 200 ENGINES. 170 & 144 REGRIND ONLY.
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.