8.188” pushrods, short?

I have a 440 with hyd. Roller cam and 440 source roller rockers in 452 heads what I believe are original valves. I measured 8.188” long pushrods. This is with the lifters on base circle and zero lash at the rocker and lifters not compressed. Slightly concerning since majority of 440 pushrods I see out there are 8.800-9.300”. Just wanted to check with you all if this is abnormal before I order the rods.