Hi, has anyone installed the PRW Stainless roller rocker kit in in an LA engine, if so, how did they perform?

I have found a new kit in my parts room,from PRW, manufactured Aug 2008, they are 1.6 ratio stainless rocker arm. I remember buying them through ebay Would these have been made in China? Or maybe Mexico...?

I often wonder if there are there any reasonably priced engine components like this that are still made in USA?

 

Just dont run a lot of spring pressure with those rockers... ok for a very mild build...

 

Thanks for the advice. I was going to use them in a 273 mild build, small solid cam, springs approx 140 seat 185 open.