Application:
Performance cam, good mid range needs exhaust & computer mods. (See Fitting Notes 1).
Suits:
Holden Commodore 5.0L 304 - 355 1988 - 97 & early engines fitted with EFI Heads.
| Application | RPM Range | Part No. | Adv. Duration | .050" Duration | Valve Lift | LSA | Lash Intake | Lash Exhaust | |||
| Intake | Exhaust | Intake | Exhaust | Intake | Exhaust | ||||||
| Performance cam, good mid range needs exhaust & computer mods. (See Fitting Notes 1). | 2400-5500 | 4503 | 289 | 282 | 227 | 220 | .486" | .486" | 113 | HYD | HYD |
Fitting Notes:
1.Must use Performance Springs.
2.Must use Performance Retainers.
3.Machining Required to fit these components.
- Mustuse performance seal.
5.Notes 1-4 Apply to this part number.
6.Check valve train geometry before ordering pushrods.
7.Pushrod Length varied in this model. Check length before ordering.
8.Spring height varies in models, check spring pressure before installation.
Part Number: 4503