Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures.
| Type | BC1030 Dual |
| Free Length | 1.815″ |
| Seat | 1.400″ @ 88 lbs |
| Open | 0.950″ @ 220 lbs |
| Coil Bind | 0.790″ |
| Retainer | BC2205 |
| Spring Seat | OEM |
| Net Cam Lift | 0.510″ / 12.95mm |




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