A full set of Supertech valve springs to suit the 4AGE 16v 1.6 engine
OD :25mm
ID :18mm
Coil bind :21mm
Rate: 7.60 lbs /mm
Free length :42mm
Supertech single valve springs for the Toyota 4AGE 16V are engineered for racing and high-performance builds. Key specs: Spring rate: 7.60lbs/mm, Free length: 42mm, and Coil bind: 21.00mm. Manufactured from premium Superclean Chrome Silicon Vanadium Steel for exceptional durability at high RPMs. Each spring is computer-designed to maintain optimal wire stress and controlled harmonics for stable, repeatable performance. Pair with matched Supertech retainers, valve locks and seat locators for a complete valvetrain package. Verify installed spring height and coil bind clearance during installation. Suitable for moderate cam upgrades, increased RPM operation and naturally aspirated performance builds. The preferred choice of the world's best engine builders for valvetrain control.