blueprint engines

I bought a brand new $5,000 crate 347 Stroker from blueprint engines I've been through three of them not one of them have made it to A Thousand Miles and they blew up the last to blowed motors up before 300 miles of normal driving I'm not understanding what's going on with this problem they keep sending me these motors but these motors that that they keep sending me back have used heads and used parts internally in them this motor here hasn't been fired up yet we'll see if it even runs it might start knocking as soon as I start it up who knows anybody have any suggestions or any leads on some good attorney that I can maybe get that will fight this case for me so I can get a brand new motor instead of a rebuilt motor for my money