Brian Crower Mitsubishi 4B11 Evo X / Hyundai G4KF Spring/Titanium Retainer Kit BC0130

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 consistent pressures.

Type	BC1130 Single
Free Length	1.693"
Seat	1.375" @ 75 lbs
Open	0.950" @ 175 lbs
Coil Bind	0.850"
Retainer	BC2130
Spring Seat	OEM
Net Cam Lift	0.475" / 12.06mm