Tomei Engine Stroker 2.2L Crankshft, SR22 For Nissan S13 Silvia 180SX TA204B-NS08A

Increasing stroke is one of the most effective ways to add displacement and mid-range torque to the popular SR20 platform. The Tomei Engine Stroker Crankshaft (part number TA204B-NS08A) is a forged full-counterweight unit with a 91.0 mm stroke (5.0 mm longer than stock), designed to convert the SR20 into a 2.2-liter SR22 combination when paired with the correct matching pistons.

Forged from high-strength alloy and finished as a full-counterweight design, this crankshaft provides the rigidity and balance characteristics needed for higher-displacement, higher-output applications. The increased stroke delivers stronger low- and mid-range torque while still allowing the engine to take advantage of larger turbochargers at higher RPM. At approximately 18 kg, it remains practical for performance street and track builds. Special Tomei or compatible stroker pistons are required—this crankshaft cannot be used with standard-stroke SR20 pistons.

This 91 mm forged crankshaft is a core component for serious SR22 stroker projects based on the S13 Silvia or 180SX. Professional machining, balancing, and assembly are essential for correct installation. At Terra Firma Automotive, we supply this genuine Tomei SR22 Stroker Crankshaft as a high-quality foundation for increased-displacement SR builds. Whether the goal is stronger response, greater torque, or more headroom for larger turbos, this crank delivers the material quality and dimensional accuracy associated with Tomei. Choose Terra Firma Automotive for authentic Japanese engine internals that support capable 2.2-liter SR combinations.

 

• Genuine Tomei Stroker Crankshaft
• Part Number: TA204B-NS08A
• Application: Nissan S13 Silvia / 180SX (SR22 conversion)
• Stroke: 91.0 mm (stock 86.0 mm)
• Creates 2.2-liter (SR22) displacement
• Full-counterweight design
• Forged alloy construction
• Approximate weight: 18 kg
• Requires special matching stroker pistons
• Not compatible with standard-stroke SR20 pistons
• Increased low- and mid-range torque potential
• Supports higher-output and larger turbo applications
• Requires professional machining and assembly
• Trusted Japanese crankshaft engineering
• Available from Terra Firma Automotive