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|
|Seat||1.975" @ 58 lbs|
|Open||1.500" @ 154 lbs|
|Net Cam Lift||0.490" / 12.45mm|
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