BRIAN CROWER SINGLE VALVE SPRINGS & RETAINERS SET SUPRA 2JZ / 1JZ. 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 BC1300 Single Free Length 1.690" Seat 1.325" @ 80 lbs Open 0.980" @ 158 lbs Coil Bind 0.810" Retainer BC2300S-24 Spring Seat OEM Net Cam Lift 0.460" / 11.68mm SINGLE SPRING/STEEL RETAINER KIT (Toyota 2JZGTE/Lexus 2JZGE/Toyota 1JZGTE):

BC0300S

BC1300

BC2300S-24

No Seat

Single spring, steel retainer

SINGLE SPRING/TITANIUM RETAINER KIT (Toyota 2JZGTE/Lexus 2JZGE/Toyota 1JZGTE):

BC0300

BC1300

BC2300-24

No Seat

Single spring, titanium retainer