Manley Toyota Supra 2JZGT/2JZGTE 6cyl Valve Spring and Retainer Kit (w/o Valve Locks)

The Manley valve spring and retainer kit is built with aerospace-grade titanium retainers, CNC machined to very precise measurements. These retainers are designed to work with the included chrome-silicon alloy valve springs, which offer excellent resistance to fatigue and high tensile strength. This combination is key for maintaining stable valve control, especially when you're pushing your engine to its limits at high RPMs, up to 10,000 RPM according to the manufacturer. This kit is specifically put together to handle aggressive aftermarket camshafts, making it a solid choice if you're upgrading your 2JZGT or 2JZGTE engine.

You're getting matched valve springs and titanium retainers in this kit. The springs themselves are made from a chrome-silicon alloy, a material known for its durability and ability to perform consistently under stress. This means they can handle the demands of performance camshafts and high engine speeds without losing their effectiveness. The titanium retainers are lightweight and strong, helping to reduce valvetrain mass, which is always a good thing when you're aiming for higher RPMs. While this kit is designed for performance, it's important to note that it does not include valve locks, so you'll need to source those separately.

This kit is a popular choice for those rebuilding or modifying the 2JZGT and 2JZGTE engines found in vehicles like the Lexus GS300, IS300, SC300, and the Toyota Supra. It's a well-built set that aims to take the guesswork out of selecting compatible valvetrain components for high-performance applications. Make sure to check your specific vehicle's fitment details to confirm this kit is the right match for your build.