Brian Crower Dual Spring / Retainer / Seat Kit Nissan KA24DE
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 retainers and spring seats are CNC machined from 6AL4V titanium to exacting tolerances.
BC1010 Seat: 1.400" @ 73 lbs / Open: 1.000" @ 200 lbs / Coil Bind: 0.940" (no machine work required)
Maximum lift on stock valve springs is .380".
"Kit - Premium wound dual valve springs, features processing and chamfer, CNC machined billet titanium retainers and spring seats."