Brian Crower Mazda MZR Single Valve Spring & Titanium Retainer

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    BC1400 Single
Free Length    1.788"
Seat    1.400" @ 86 lbs
Open    1.000" @ 190 lbs
Coil Bind    0.835"
Retainer    BC2400
Spring Seat    OEM
Net Cam Lift    0.480" / 12.19mm