Brian Crower Valve Spring - Single (Mitsubishi 4B11T Evo X, Hyundai G4KF Genesis) - 1 only BC1130-1

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	Single
Free Length	1.693"
O.D./I.D. Outer	0.960" / 0.675"
O.D./I.D. Inner	n/a
Seat	1.375" @ 75 lbs
Open	0.950" @ 175 lbs
Coil Bind	0.850"
Retainer	BC2130, OEM
Spring Seat	OEM
Net Cam Lift	0.475" / 12.06mm