Supertech Beehive Valve Spring Kit w/ Titanium Retainers Nissan Skyline RB25 DOHC NEO w/ Solid Lifter | SPRK-M1007BE-RB25N

Vehicle Fitment

• Nissan RB25 DOHC NEO engines
• Nissan RB25 DOHC NEO solid lifter applications
• Nissan Skyline R34 RB25DET NEO applications

The Supertech SPRK-M1007BE-RB25N Beehive Valve Spring Kit is designed specifically for the Nissan RB25 DOHC NEO solid lifter engine. Developed for high-performance and high-RPM applications, this upgraded valvetrain package improves valve control, reduces the risk of valve float, and provides the reliability required for aggressive camshaft profiles, increased boost, and elevated engine speeds.

Featuring Supertech’s advanced beehive-style valve springs, lightweight titanium retainers, and precision spring seat locators, this kit reduces valvetrain mass while maintaining consistent spring pressure for improved performance and durability in demanding applications.

Product Features

• Beehive valve spring kit
• Designed for Nissan RB25 DOHC NEO solid lifter applications
• Includes valve springs, titanium retainers, and spring seat locators
• Lightweight titanium retainers reduce valvetrain mass
• Designed for high-RPM performance engines
• Improves valve stability and control
• Ideal for turbocharged and competition RB25 builds

Kit Includes

• 24 Beehive Valve Springs
• 24 Titanium Retainers
• 24 Spring Seat Locators

Included components:

• Valve Springs: SPR-M1007BE
• Titanium Retainers: RET-N55/TBE
• Spring Seat Locators: SEAT-SS3030

Valve Spring Specifications

• Outer Spring OD: 28.00mm
• Outer Spring ID: 18.80mm
• Inner Spring OD: 24.20mm
• Inner Spring ID: 14.50mm
• Seat Pressure: 78 lbs @ 38.7mm
• Open Pressure: 200 lbs @ 10mm lift
• Maximum Net Lift: 15.30mm
• Coil Bind Height: 22.80mm
• Spring Rate: 12.80 lbs/mm

Performance Benefits

• Reduces valve float at high RPM
• Improves valve control with aggressive camshaft profiles
• Supports higher engine speeds
• Reduces valvetrain weight with titanium retainers
• Maintains consistent spring pressure under extreme conditions
• Improves reliability in boosted RB25 NEO builds
• Helps prevent valvetrain instability during racing conditions

Why Upgrade Your RB25 NEO Valve Springs?

The factory RB25 NEO valvetrain was designed for OEM power levels and factory operating conditions. When increasing boost, installing performance cams, raising the rev limit, or building a competition-oriented engine, upgraded valve springs become essential for maintaining proper valve control.