<VV> 140 pg vs. 140 std crank

[EUGENE1938@aol.com]

kovacsmj@sbcglobal.net writes:
I know the 140 STD and the 140 PG crankshafts have a different (4
degree) gear relationship. I cannot find the technical data that tells
if the 4 degree difference is a retard or advance.
Mike,
According to the Chevrolet Corvair Parts Book, published by the General Motors
Parts Division, page 0-8, the retarded crank gear was used in the 65-66 140 
w/PG
and all 68-69 w/PG.  The gear is Group 0.728, P/N 3885399.  It doesn't get any
plainer than that.  And yes it is a 4 degree retard.

Ed Corson (CORSA member)
IECC - Riverside, CA