SpeedFactory Racing D16Z/Y SOHC VTEC Valve Springs & Titanium Retainers

Description

Upgrade your SOHC VTEC valvetrain with the SpeedFactory Racing Valve Springs & Titanium Retainers kit, designed for D16Z, D16Y, D17, and JDM D15B engines. This premium 16-piece set includes high-quality valve springs and lightweight titanium retainers engineered to deliver superior performance, durability, and precise valve control at high RPM and boost levels.

Valve Springs Features:

• CAD designed and CNC wound from super clean chrome silicon vanadium nickel alloy

• Double shot peened and isotropic finished & oiled for maximum durability

• Designed to prevent valve float during aggressive driving and high boost conditions

• Seat Pressure: 60 lbs @ 1.948”

• Open Pressure: 166 lbs @ 1.456”

• Max Net Lift: 0.547”

• Compatible with OEM steel retainers or SpeedFactory Titanium Retainers (#SF-02-422)

• Use OEM spring seat locators for installation

Titanium Retainers Features:

• Precision CNC machined from lightweight and strong 6Al-4V titanium

• 24% lighter than OEM steel retainers, reducing valvetrain mass for improved high RPM control

• Each retainer weighs just 4.6 grams

• Includes 16 pieces for a complete engine upgrade

Compatible Applications:

• Honda SOHC VTEC Engines: D16Z, D16Y, D17, and JDM D15B

This kit is a perfect upgrade for enthusiasts looking to improve valvetrain stability, power, and reliability under extreme conditions. Whether you’re running aftermarket cams, high boost, or pushing high RPM limits, SpeedFactory Racing springs and titanium retainers ensure your engine performs at its best.