Skunk2's Alpha valve spring set upgrades the H22A and F20B DOHC VTEC valvetrain in the Honda Prelude with dual inner and outer springs wound from super-clean chrome-silicone wire milled in Japan. The paired springs resist valve float and maintain valvetrain stability at engine speeds above 10,000 rpm. Each set covers a full head of 16 valves.
| Type | Alpha Series dual valve spring set (inner and outer) |
| Material | Chrome-silicone wire |
| Open Pressure | 205 lbs. at 0.900 in. |
| Seat Pressure | 50 lbs. at 1.400 in. |
| Coil Bind | 0.880 in. |
| Quantity | Set of 16 (full head) |
| Part Number | 311-05-1360 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1997-2001 | Honda | Prelude | Base |
| 1997-2001 | Honda | Prelude | Type SH |
| 1993-1996 | Honda | Prelude | VTEC |
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Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
