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Powerglide, 350, 400 Performance Converter (Mounting Ring)

10" Racekit
Part No. GM-RK-1417

View Instructions

Sonnax racekit GM-RK-1417 provides torque converter builders the components for producing low-cost, high performance converters for the Powerglide, 350 and 400. Using this kit allows the use of the OE GM 245mm front cover.

When using in a Powerglide application the impeller hub must mount .070" taller. Either leave a .070" boss on the impeller to extend the height when using the impeller hub included in the kits or use a GM-90-300G impeller hub and cut it down to 3.695" length.

  • Impeller Hub Butt-mount
  • Turbine Hub 17-Tooth
  • Conversion Pilot
  • Front Cover Bushing
  • Mounting Ring with 10¾" and 11½" bolt patterns
  • Thrust Washer
  • Countersunk Bolts (3)
  • Unit Size: 10"
  • Core: GM 245mm
  • Dampered: No
  • Lockup: No
  • Turbine Hub Input Spline Count: 17
  • Existing Customers: Contact your sales representative.
  • New Customers: Fill out the form and a sales representative will contact you.
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Sonnax Performance Converter Kits

Engineered to Deliver Builds that Last

Designed from the ground up to outperform OE and other aftermarket components, Sonnax has you covered with a full line of performance converter kits for gas and diesel vehicles. Offering the widest variety of options in the aftermarket, these innovative kits deliver customized performance and value.

  • Small/Large Diameter
  • Single-Plate/Multi-Plate/Non-Lockup
  • Dampered/Damperless


Choose the right kit for your rebuild!