<VV> Aluminum 4-speed transmission

[peter koehler]

I never heard anything about Chevrolet wanting to road 
race the four speed aluminum case transmission. My 
information is that only two were produced. Ken Hand 
donated the one that the CPF has and that is the one that 
was displayed at the Buffalo event. The reason why the 
production shifted to cast iron was one of raw material 
availability. At the time Chevy was pumping out a lot of 
aluminum parts for other products - like the Powerglide 
transmission and could not spare the raw aluminum needed 
for Corvair manual transmission production. That is 
probably why the 3-speed transmission case was changed 
over to cast iron with the 1961 model year.

As for where is the "other" aluminum case 4-speed; anybody 
want to guess? - Caveman Pete