Tomei Valve Lifter Set RB20/25 Solid Type (Non NEO) TA307A-NS06A

The Tomei Valve Lifter Set for RB20 and RB25 engines, Solid Type (Non NEO), is designed to elevate the performance of high-revving, tuned engines. With a cold forging process applied to high-strength chromoly steel, Tomei lifters significantly reduce stress on the engine’s valves, ensuring superior reliability even at extreme RPM levels. This precision engineering is essential for high-performance applications, where the margin for error is minimal, and engine components must endure intense loads.

Tomei further enhances these lifters through a carburizing process, which infuses the surface with carbon atoms, resulting in a hardened outer layer while preserving a softer core for resilience. This process dramatically increases the surface hardness, extending the durability of the lifters under extreme engine conditions, making them ideal for solid-type cam setups. Unlike hydraulic lifters, which can limit tuning potential and restrict the use of high-lift camshafts, Tomei's solid-type lifters allow for higher performance capabilities, enabling the use of custom camshafts designed specifically for solid lifter applications.

The switch to solid lifters from hydraulic lifters resolves the issues of limited RPM potential and tuning flexibility, making them an essential upgrade for enthusiasts looking to push their RB20 and RB25 engines to new performance heights. For those seeking to unlock the true potential of their high-performance builds, the Tomei Solid-Type Valve Lifter Set is the perfect solution, delivering durability and efficiency where it matters most. Terra Firma Automotive proudly offers these lifters to help you achieve your tuning goals.

 

• RB25DET SET Requires Tomei Valve Springs TA304A-NS06B
• NOT compatible with NEO 6
• Direct replacement from the stock hydraulic lifters. Adjusted by shims.
• Requires solid type camshafts.
• Height of the base is 1mm extra. For Φ29 base circle camshafts.
• Suited for TOMEI camshafts with 10.25mm lift.
• High strength by cold forging,
  lightweight. Weighs approximately 35g ( Stock is 57.5g)
• For use with Tomei Shims