Description
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.
Features
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Premium Construction: Manufactured by PAC Racing from ultra-clean, high-grade chrome silicone alloy.
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High RPM Stability: Designed for engines operating at elevated RPMs where valve control is critical.
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No Machine Work Required: Direct drop-in fitment for compatible cylinder heads.
Spring Specifications
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Seat Pressure: 85 lbs @ 1.320″
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Open Pressure: 168 lbs @ 0.930″
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Coil Bind: 0.775″
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BC Part Number: BC1650
Benefits
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Maintains valve control at high RPM
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Minimizes valve float and spring surge
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Built for consistent performance and long service life
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Ideal for performance street or track use






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