The Brian Crower heavy-duty single spring and titanium retainer kit is made for Toyota 2JZ-GTE and Lexus 2JZ-GE engines and specified for 800+ whp applications. It supplies valve spring and titanium retainer hardware intended to support high-power builds, offering a direct replacement solution for engines requiring strengthened valvetrain components under elevated power levels.
Brian Crower Toyota 2JZGTE/Lexus 2JSGE HD Single Spring & Titanium Retainer Kit (800+whp)