Bill Hubbell whubbell at verizon.net
Wed Jun 10 20:36:49 EDT 2015

Yep, that's correct, Jerry.  

The early pans have a sort of rectangle shaped embossing between the bolt holes and Lates have sort of a diamond shaped embossing between the bolt holes   

This sounds like another good photo album for the SCG site. 

Bill Hubbell. 

On Jun 10, 2015, at 6:43 PM, Jerry Brown via SCG-list <scg-list at corvair.org> wrote:

The only difference in oil pans was one style for the early's and one style for the Late's. The late had larger flat bolt area and used a bolt with a fastened lock washer giving it more gasket sealing area.  I use the late pan as long as I have one.Jerry Brown 

    On Wednesday, June 10, 2015 11:20 AM, Bob Helt via SCG-list <scg-list at corvair.org> wrote:

Again, as I remember, there was a tech bulletin on this subject. I will try 
to locate it but it will take some time to do so because of my current 
work  load. I believe that one sealing change was done for 1966 as the proving 
grounds  report had a favorable statement concerning all the rust on the oil 
pan as being  a sure sign of no oil leaks for that year.
Bob Helt

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