BC Brian Crower Valve Springs and Retainer Kit for EJ25 Subaru WRX STi
BC Brian Crower valve spring and titanium retainer kit for the WRX and STi models with the EJ20 and EJ25 engine. Designed for high RPM, BC valve springs by PAC Racing are crafted from the highest grade, ultra-clean chrome silicone alloy and undergo proprietary processing for consistent pressure. BC titanium retainers are CNC machined from 6AL4V titanium round bar to exacting tolerances.
Please Note: Pictures are for reference.
Vehicle Fitment:
2002-2014 Subaru WRX
2004-2021 Subaru STi
(EJ20/EJ25)
Purchase Includes:
(16) Valve Springs
(16) Retainers
| Part Number: | Spring Type: | Free Length: | Seat: | Open: | Coil Bind: | Retainer: | Spring Seat: | Net Cam Lift: |
| BC0600 | BC1600 Single | 1.788" | 1.420" @ 80 lbs | 1.000" @ 178 lbs | 0.850" | BC2300-16 | OEM | 0.480" / 12.19mm |
| BC1600S | BC1600 Single | 1.788" | 1.420" @ 80 lbs | 1.000" @ 178 lbs | 0.850" | BC2300S-16 | OEM | 0.480" / 12.19mm |
| BC0610 | BC1020 Dual | 1.606" | 1.325" @ 82 lbs | 0.925" @ 180 lbs | 0.825" | BC2305-16 | BC2936 | 0.450" / 11.43mm |
More from Brian Crower:
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: 0.825" (no machine work required)
More from Brian Crower:
Retainers
Brian Crower titanium retainers exemplify lightweight high performance, typically weighing around 40% less than standard OEM steel units. They are CNC machined from premium 6AL4V titanium bar stock to precise tolerances.
Spring/Retainer Kits
Brian Crower valve spring and titanium retainer kits are precisely matched systems designed to work together seamlessly, ensuring improved valve control at higher RPMs. This compatibility allows for higher lift camshafts, enhancing both performance and reliability.
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