Brian Crower Subaru BRZ/Scion FR-S/Toyota GT86 4UGSE Single Spring & Titanium Retainer Kit w/ Seats

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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 co nsistent pressures. Type BC1650 Single Free Length 1.607" Seat 1.350" @ 80 lbs Open 0.900" @ 220 lbs Coil Bind 0.765" Retainer BC2650 Spring Seat BC2938 Net Cam Lift 0.500" / 12.7mm Show more