Manley Pushrods 25339-8

Based on the pic in the catalog, showing a cutaway of all the pushrods in that series, they’re oil thru.

For non-oiling pushrods like that, you’re more than likely going to need something from Smith Bros, Manton, or Trend.

Price looks like it will be the same anyway. He will probably need two different lengths with those offset rockers anyway.