Factory rocker defeated by pushrod.

they are for a fact made by Harland Sharp, and carry a lifetime warranty from HS.
I asked them this very question few months back, talked to the son who now runs the company.
Good to know. Thanks for doing the ground work. The picture looks like all of the speedpro rockers and when I was shopping I did run into the harland sharps for the price you suggested but that deal dried up while I was shopping. I ended up with the pro comp SS rockers through B3 racing.
@HiFire, The Mancini site is a good place to do some shopping. They have some 273 style rockers for a decent price.