Circle D GM 258mm HP Series 8L90 Torque Converter

Circle D GM 258mm HP Series 8L90 Torque Converter

Regular price $899.99 Save $-899.99

SKU: 24-07-05

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(Built to Order 2-3 Weeks Build Time)

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GM 258mm HP Series 8L90 Torque Converter

HP Series Billet Stator Torque Converter Converter Diameter - 258mm This is a modified factory converter with billet stator. This will increase the stall speed approximately 1000 rpm over stock, to around 3000-3200 rpm.

Great choice for the late model mildly modified 8L90 equipped GM vehicle. Features include:

  • Woven Carbon Lockup Clutch Linings
  • Hand TIG welding throughout
  • Impeller Fin Recallibration
  • 5th Axis CNC machined Full Billet Stator
  • Custom CDS Internal clearances


Converter Recommendations

  • 245mm - N/A Combinations (Cars and RCSB Trucks)
  • 258mm - Boosted Combinations (Cars, RCSB Trucks, and aggressive ECSB/CCSB trucks)
  • 265mm - N/A or Boosted Extended Cab/Crew Cab Trucks 
  • 300mm/Triple Disk Pro Series - Very mild cam combinations or OE stall speed / heavy duty replacements