5th Bearing Retro Kit


5th Bearing Retro Kit for Assembled Corvair Flight Engines


  • CNC Machined Billet Front Casting with Standard Size Bearing Installed
  • Heat Treated 4340 Bearing Hub
  • Oil Seal
  • Oil Inlet Fitting
  • Complete Instructions

(Fulfills FlyCorvair Part Number 3001)




Our Corvair 5th Bearing Retro Kit is designed to be installed on assembled Corvair flight engines.

The Corvair 5th Bearing Retro Kit was originally designed by Dan and Jim Weseman to reduce the bending loads the propeller generates during flight and direct them into the case. In stock form the loads are taken between the #4 crank bearings and across the #6 rod throws. This configuration puts the load into the new 5th and #4 bearing, taking the bending loads off the over stressed #6 rod throw and directs it to the new front housing and engine case.


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