RCM Gobstopper Arrow 75mm Billet Crankshaft (EJ20/EJ25)

Quality. Innovation. Performance. The hallmarks of Arrow Precision. Only the highest quality raw materials, the latest methods and the knowledge of superbly skilled designers and engineers goes into the making of every Arrow Precision part.

At the heart of every Gobstopper engine you'll find the Arrow crankshaft, the ultimate piece of British Engineering designed to withstand the most extreme engine loads.

Engineering precision detailed cranks begins with only the highest quality materials and a flexible batch manufacturing process. Arrow Precision works to exacting standards creating a Subaru crankshaft reverse engineered to stunning perfection. This is achieved through continuous inward investment in skilled, experienced people and working practices.

Accuracy and efficiency are the hallmarks of a precision crank shaft ensuring you the strongest, lightest and most reliable crank available.

TECHNICAL SPECIFICATIONS

  • Stroke: 75.00 mm
  • Pin Diameter: 51.99
  • Pin Width: 21.50
  • Main Diameter: 59.99
  • Main Width: 18.5. 22.0 & 23.0
  • C/Weight: 4
  • Bolt: 8

FEATURES

  • Significantly lighter and stronger than the OE crankshaft
  • Fully machined
  • Arrows own grade of low sulphur CORUS steel in EN40B (722M24)
  • Balanced between 2 and 15 grams (depending on the number of cylinders)
  • 100% crack detection
  • Certification – material, heat treatments, balancing, critical detail inspection report.
$8,500.00
SKU
RCM2620

 

Founded in the early 1991 by multiple RAC winner and British Rally Champion Roger Clark MBE, Roger Clark Motorsport is one of the UK's (and for that matter, global rally's) premier motorsport and product development specialists and tuners. Roger Clark Motorsport specialize in the Impreza platform (the car-of-choice for their unparalleled Time Attack Cars Gobstopper I, Gobstopper II and soon Gobstopper III), and have passed on these high-performance components to the consumer market. We are incredibly proud to be one of the only U.S. distributors able to offer these exceptional Roger Clark Motorsports parts.

 


WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.

More Information
SKU RCM2620
Brand Roger Clark