Well took another look at the old impeller and something became very obvious. I shouldn’t rely on my memory as I earlier said it was 1.5″ OD. Actually the center hub is 1.1875″ dia and the vanes are about .44″ long which would give a OD of 2.06″. This is larger than the Sierra impeller that has been modified for use. Have to ponder this a bit. Anyway attached is a pic of the old impeller.
Also, Gary thanks for the article. Have to give it a read here soon.
Kirk
