<VV> Serial numbers, differential questions and Tom Keosababian's car

[Sethracer@aol.com]

In a message dated 11/29/2004 2:50:49 A.M. Pacific Standard Time,  
dunlapsville@yahoo.com writes:

2) What  year did Chevy offer 4.11:1 Corvair differential ratios?  I know 
that the  Yenko Stingers ran them but I always thought that they were made up by 
Don  from the Chevy parts bin and "sorta"homolegated" just for racing.  Is  
that indeed correct?   Did they ever come stock on Vans or FC  vehicles?   
 
Chevy never offered a 4.11:1 gearset - It was made in the aftermarket,  
mostly for dune buggies and some drag racing. Yenko used the 3.89:1 as standard  on 
the Stingers. Chevy made a special run for him. The ratio is the same as  the 
earlier 60-63 and 61-63 FC, but the ring gear has 9 bolts vs. the early  
model ring gears that had 6 bolts. They have been available in the aftermarket -  
The aftermarket ones had both bolt patterns.



3) How do you tell what year and model flywheel/ring gear sets  came out of ? 
 What are the best ones for road racing?  For drag  racing?  For running at 
Bonneville?

Road Racing - lighter, Drag racing - heavier, Bonneville - It doesn't  matter.
The late model 110 Flywheel/Clutch is the lightest Combo. The 140/180 used  a 
heavier pressure plate. There are aftermarket spring diaphragms that 
"beef-up"  the clamping force of any pressure plate. You should use a matched set  
flywheel/Pressure plate from either early (60-63) or late (64-69) based on the  
flywheel surface.
 


5)  What is the largest engine you can build using the VW cylinders?  Where  
are they they cheapest (new)?  Can you find them used?  What is the  hot 
set-up for pistons?




Vendors will chime in here. - Seth