Have a E0 block which should be a 1980 block. the harmonic says E1 so this should be a 1981 balancer. So is this balancer a 28 or a 50? I beleive the change year was 1981 and I am just lost as to which one it is. I have a 1969 28 oz and they look very similar. I need to know which flex plate to install and I have both. What I don't want to do is asume and have to take the tranny off another time. I am about to wear out the bell housing bolts! Thanks, Mitch
took the pan off looked at crank castings. this crank is a mae which means its a 50 oz inbalance. Thanks