Quote: ... closed pressure is 275#... open... just over 700#... 3/8"x0.089" wall pushrods.
Also wanted to mention that everything I've seen and heard re: pushrods these days is that yours aren't beefy enough for that much spring pressure / RPM / aggressive lobes.
It probably has nothing to do w/ breaking the shaft pedestals, but could definitely have an impact on valve train longevity. I think most engine builders I deal with would be suggesting at least .120" walls in a 3/8" diam. pushrod.
