Increasing displacement is one of the most effective ways to add torque and power potential to an RB26DETT. The Tomei Forged Crankshaft (part number TA204C-NS05A) is an 8-counterweight design with a 77.70 mm stroke (+4.0 mm over stock), developed specifically to create a 2.8-liter stroker combination when paired with the appropriate pistons and rods.
Forged from 4340 steel and finished with a hardening surface treatment, this crankshaft is engineered to handle the elevated loads associated with higher displacement, boost, and RPM. The 8-counterweight configuration provides a balance of strength and rotating mass control, while the crank pin and main journal dimensions (48.0 mm and 55.0 mm respectively) maintain compatibility with standard RB26 bearing sizes. At approximately 20.1 kg, the crank is designed as a durable foundation for serious stroker builds rather than an ultra-lightweight racing piece.
This 77.7 mm forged crankshaft is intended for RB26DETT engines being converted to 2.8 L and requires matching pistons, rods, and professional machining for correct assembly. At Terra Firma Automotive, we supply this genuine Tomei Forged Crankshaft as a core internal component for high-output stroker projects. Whether the goal is stronger mid-range torque or greater overall power capacity, this crank delivers the material quality and dimensional accuracy associated with Tomei. Choose Terra Firma Automotive for authentic Japanese engine internals that support capable 2.8 L RB26 builds.
- Genuine Tomei Forged Crankshaft
- Part Number: TA204C-NS05A
- Application: Nissan RB26DETT
- Stroke: 77.70 mm (+4.0 mm over OEM)
- Creates 2.8 L stroker displacement
- Counterweight design: 8 counterweights
- Material: 4340 forged steel
- Surface treatment: Hardening
- Crank pin diameter: 48.0 mm
- Main journal diameter: 55.0 mm
- Approximate weight: 20.1 kg
- Designed for higher-output and stroker builds
- Requires matching pistons, rods, and professional assembly
- Trusted Japanese crankshaft engineering
- Available from Terra Firma Automotive
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