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Product Fitment:
2013-2016 Scion FR-S
2013-2020 Subaru BRZ
2017-2020 Toyota 86
Engineered for high-revving performance builds, the BC1650 valve springs from Brian Crower are manufactured by PAC Racing using premium chrome silicone alloy and proprietary processing techniques. These valve springs are designed to deliver consistent spring pressures and long-term durability at high RPM, making them ideal for turbocharged, supercharged, or naturally aspirated engines built for serious performance.
Premium Construction: Manufactured by PAC Racing from ultra-clean, high-grade chrome silicone alloy.
High RPM Stability: Designed for engines operating at elevated RPMs where valve control is critical.
No Machine Work Required: Direct drop-in fitment for compatible cylinder heads.
Seat Pressure: 85 lbs @ 1.320"
Open Pressure: 168 lbs @ 0.930"
Coil Bind: 0.775"
BC Part Number: BC1650
Maintains valve control at high RPM
Minimizes valve float and spring surge
Built for consistent performance and long service life
Ideal for performance street or track use
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