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Powerglide, 350, 400 Performance Converter (Mounting Ring)

10" Racekit

Part No.


10" Racekit
  • 10" Racekit


Powerglide, 350, 400 Performance Converter (Mounting Ring)

10" Racekit

Part No. GM-RK-1417

  • 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)

  • Turbine Hub Input Spline Count: 17
  • Unit Size: 10"
  • Core: GM 245mm
  • Dampered: No
  • Lock Up: No

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.

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

Learn more about Sonnax performance converter kits!

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