360 stainless steel roller rockers on ebay, too good to be true?!?!?

They are bushed, used them on a 318, worked fine, also used a set on a small block chevy. The rockers in the chevy are still going strong after 4 years. The 318 are good after 2 years. Neither are race vehicles and have mild valve springs for hydraulic cams. The mopar has the highest pressure dual springs, 115 seat, 336psi open pressure. They are not the quality of high dollar stuff, but work good for what ive used them for. Also had good luck with their rods, and have a couple ford friends that use there cranks with no problems.