51-222-4 — 218/224 duration at 0.050", 0.462"/0.47" lift, 110 LSA. Pontiac V8, hydraulic flat tappet.
| Part number | 51-222-4 |
|---|---|
| Duration at 0.050 intake | 218° |
| Duration at 0.050 exhaust | 224° |
| Valve lift intake | 0.462" |
| Valve lift exhaust | 0.47" |
| Lobe separation angle | 110° |
| Published RPM range | 1300-5500 RPM |
| Lifter type | Hydraulic flat tappet |
| Platform | Pontiac V8 |
| Intended use | Mild street, stock/1800 stall |