Brian Crower

Valve Single Spring & Retainer Kit (WRX MY01-14/STI MY01-20)

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  • Regular price $549.00
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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. BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances.
Kit # Spring # Retainer # Seat # Description
BC0600 BC1600 BC2300S-16 No Seat Single spring, titanium retainer
BC0600S BC1600 BC2300S-16 No Seat Single spring, steel retainer
BC0610 BC1020 BC2305-16 BC2936 Dual spring, steel retainer, steel seat
Spring Pressure: BC1600 Seat: 1.420" @ 80 lbs / Open: 1.000" @ 178 lbs / Coil Bind: 0.850" (no machine work required)
Spring Pressure: BC1020 Seat: 1.325" @ 82 lbs / Open: 0.925" @ 180 lbs / Coil Bind: 0.730" (no machine work required)