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 | BC1220 Single |
| Free Length | 1.731″ |
| Seat | 1.425″ @ 80 lbs |
| Open | 0.990″ @ 192 lbs |
| Coil Bind | 0.900″ |
| Retainer | BC2200 |
| Spring Seat | OEM |
| Net Cam Lift | 0.450″ / 11.43mm |




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