Build a 3.3L Corvair at the May 18-20 Workshop/Open house.



We are getting closer to our next event: FlyCorvair/SPA – Joint Workshop/Open house, May 18,19,20. We have already signed up builders of 2700-3000cc Corvairs for 1/2 of the test run slots, but we are reserving almost all of the other slots for 3.3L “Engine in a Box” complete kits. These kits are on the shelf at SPA. If you are considering using one in your plane, the workshop represents a golden opportunity to purchase a kit in advance, and come to the worksop to learning, assembly, and test run. On Sunday you will head home with a great American made motor, a lot of new skills and understanding, and some new friends to boot.


Get a look at all the links to stories, videos, and pictures of 3.3s. If you decide than you will take advantage of the workshop to make a quantum leap forward on your plane project, call Rachel at the SPA engine hotline to get more pricing and information about the workshop. 904-626-7777.


A good basic overview of the 3.3L Corvair can be seen here:

3.3 Liter Corvair, a Smooth Power House


 Above, Dan and Rachel stand on either side of their 3.3 engine at Oshkosh 2015. In the 33 months since the 3.3 has go on the become the ‘engine in a box’ kit, which as been assembled and flown by a number of builders.


Link to a video of the first 3.3 Running:

SPA / Weseman 3.3 Liter Corvair now running


A story about vibration testing at Sensenich props on the 3.3:

Testing at Sensenich Propellers


Story about a 601XL flying on a 3.3L:

Ken Pavlou, Zenith 601XL / Corvair, 620 hours.


A story about the billet cranks which are the heart of all the 3.3Ls and many 3.0L Corvairs

SPA Billet Corvair Cranks


A short discussion of the value of a large displacement Corvair

3,300cc Corvair 601XL, Oshkosh 2017


A look at how the standard baffling kits also clean;u fit the 3.3:

Baffling on 3.3 Liter Corvair 


A funny story about a test run on a 3.3:  3.3 Liter Corvair of Kamal Mustafa





About William Wynne
I have been continuously building, testing and flying Corvair engines since 1989. Information, parts and components that we developed and tested are now flying on several hundred Corvair powered aircraft. I earned a Bachelor of Science in Professional Aeronautics and an A&P license from Embry-Riddle Aeronautical University, and have a proven 20 year track record of effectively teaching homebuilders how to create and fly their own Corvair powered planes. Much of this is chronicled at and in more than 50 magazine articles.

2 Responses to Build a 3.3L Corvair at the May 18-20 Workshop/Open house.

  1. David J Tillema says:

    When and where is the next college ?

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