Valve springs can be purchased from Camtech Cams and other companies. Valve springs that can be found off the shelf are generally only in two specifications first being 85lb installed pressure -> 235 @ 0.500 lift and 100lb installed -> 250 @ 0.500 lift. Aftermarket retainers can be sourced from PAC springs in Qld Australia.
| Part Number | Installed Height | Instelled Pressure | Pressure @ 0.500 Lift | Max Lift | Solid Height | Spring Retainer | Valve Locks |
|---|---|---|---|---|---|---|---|
| 5840 | 1.550″ | 85lb | 235lb | 0.580″ | 0.880″ | Standard | Standard |
| 5833 | 1.550″ | 100lb | 250lb | 0.510″ | 0.900″ | Standard | Standard |