Big Block A-Body 0.70 fan spacer

I think you mean 0.70 must a bit over 11/16". 0.070 (seventy thousandths) wouldn't do much, I see you must have changed it in the text but not the title. I will check to see if I have the correct spacer on Monday.

Dont u mean 1/16 '' ? .0625 , I make my own - easy .