They are not reliable

The best cheap rocker is the Stainless PRW and they leave a LOT to be desired
The studs sent with them should go right in the trash use bolts --and it takes a half a day to get the spacing correct where you have roller near centered over valve tip and push rod not rubbing--they are not great but
they will stay in there and run a while on a street unit

There are NO decent rockers for decent price

The Mancini units which are not needle bearing are great except they have a china grade adjuster that you have to be careful with If these had decent quality adjusters they would be good

Harlands are your best bet but they have soared in price and are for a serious build

Just a damn shame we can't get decent rockers for under $400 a set--shoot ...make that $350
I get wonderful quality for Fords or Chevys for around $235 that will stand race roller pressures
It is a real crime!1

the Mancinis could be the answer if they would up the adjuster quality and to be fair I have not bought a set in a long while so ...maybe they have