These are advertised as the best on the market, if that was the case they wouldnt be one of the cheapest. I know you want to stay away from anything Proform brand cause their junk. Ask the guy who makes the rockers? If theyre built in USA and have a lifetime warranty I dont see why not. However if they arent stay far away. I just recently bought some Angus brand roller rockers from a company and did so because they have a lifetime warranty.
I agree. They look fairly generic to me. No name, or part # looked like. A broken rocker arm might cost you a motor. so you could spend an extra $100 now or an extra $500-$1000 or possible more later.
I'm running Scorpion roller rockers on mine, and I'm very pleased.
But I'd stay away from these, if they won't put the brand name on the auction title, I stay away from it completely.