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About a year ago I went to the internet searching for full roller rocker arms and found these investment cast stainless steel rockers for only $129 including shipping. Since I installed them I have seen many other engines with these but they don't have a brand name that I can recall. They are foreign made (probably in China) but they appear very well made.
As I wanted to retain my OEM valve covers I modified the hex head adjustment nuts and made a simple "T" tool to turn them.
Chinese knockoff of the older Comp Cams Magnum roller rockers. I would keep an eye on them.
I bought them from a vendor in New York and the ad said they were marked down from $244 and they only had one other set left. Maybe someone trying to get rid of them? They don't have any logo on them but they appear very well made. The push rod cup is carbon steel and is pressed in and the rollers on the tip measured .450" diameter. From their appearance I would say they're stainless steel investment castings. I'll see how well they hold up in my daily driver.
See how the pin holding the roller tip is just penned over? They will fail there. I had a set come in a kit of parts I bought. They are still sitting in the box on the shelf. Never installed. Bought Comp Cams Gold Series. Lifetime warranty.