Description
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 BC1040 Dual
Free Length 2.030″
Seat 1.590″ @ 80 lbs
Open 1.020″ @ 215 lbs
Coil Bind 0.870″
Retainer BC2011
Spring Seat BC2904
Net Cam Lift 0.620″ / 15.74mm
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