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89-94 Nissan 240SX BrianCrower Dual Spring/Retainer Kit.
Designed for high rpm, BC valve springs 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 includes: Premium wound dual valve springs.
CNC machined billet titanium retainers.
Spring Pressure:
BC1010 Seat: 1.400" @ 73 lbs / Open: 0.950" @ 155 lbs / Coil Bind: 0.850" (no machine work required)
Maximum lift on stock valve springs is .380".
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