Converting an RB26DETT or RB25DET to 2.8 liters is one of the most effective methods for increasing torque and overall power potential. The Tomei Engine Stroker Kit (part number TA201A-NS05AP) is a complete package designed to achieve this displacement increase using an 87 mm bore and longer-stroke crankshaft, supplied with CP pistons for Non-NEO engines.
At the heart of the kit is a forged 8-counterweight crankshaft with a 77.70 mm stroke, increasing displacement while maintaining the strength required for higher loads. Matched to this are Tomei forged H-beam connecting rods in the correct shorter length for the stroker combination, along with a complete set of CP forged pistons in 87 mm bore. An oil jet spacer is included to support proper piston cooling in the higher-displacement configuration. All primary rotating assembly components are selected to work together, simplifying the process of building a durable 2.8-liter short block.
This kit is intended for serious RB26 and RB25 builds where greater mid-range torque and higher power capacity are the objectives. It is not compatible with NEO engines and requires professional machining, balancing, and assembly for correct installation. Appropriate supporting modifications and engine management are essential to safely realize the benefits of the increased displacement.
At Terra Firma Automotive, we supply this genuine Tomei 2.8 L Stroker Kit with CP pistons as a comprehensive foundation for high-output Non-NEO RB projects. Whether the goal is stronger street performance or higher-power applications, this kit delivers a matched crankshaft, rods, and CP pistons for a capable stroker combination. Choose Terra Firma Automotive for authentic Japanese engine internals that support serious 2.8-liter RB26 and RB25 builds.
- Genuine Tomei Engine Stroker Kit
- Part Number: TA201A-NS05AP
- Converts RB26DETT / RB25DET to 2.8 liters
- Includes forged 8-counterweight crankshaft (77.7 mm stroke)
- Includes Tomei forged H-beam connecting rods
- Includes CP forged 87 mm piston kit
- Oil jet spacer included
- Designed for Non-NEO engines only
- Not compatible with RB25/RB26 NEO
- Matched rotating assembly components
- Increased displacement for greater torque potential
- Suitable for high-output and performance builds
- Requires professional machining and assembly
- Trusted combination of Tomei and CP components
- Available from Terra Firma Automotive
- Manual PDF, Click Here
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