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 |
BC1070 IN/BC1089 EX |
| Free Length |
2.231" |
| Seat |
1.975" @ 58 lbs |
| Open |
1.500" @ 154 lbs |
| Coil Bind |
1.320" |
| Retainer |
BC2070 |
| Keepers |
BC2940 |
| Net Cam Lift |
0.490" / 12.45mm |
