Problems with the ZZ3 crate engines???

[mnm99]

I bought the crate 290 hp and started blowing blue smoke after 200 miles. I brought it back to the dealer where I bought it. That's the main reason I bought it from the dealer instead of Jegs ect.. They fixed it right away. It ended up being the valve seals. 6 of them were crushed because the weren't pressed in enough. It was all good since then. Built in EL MEHECO....