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
BC1230 Single

Free Length
1.879"

Seat
1.535" @ 90 lbs

Open
1.150" @ 190 lbs

Coil Bind
0.935"

Retainer
BC2230

Spring Seat
OEM

Net Cam Lift
0.520" / 13.2mm