Business ProfileforY&D Machine Shop Inc

Bought a rebuilt cylinder head off of them on **** in 2023 and nearly a year and not even 5000 mi later, the head is no good. They do not provide a warranty and do not stand behind their work. I can no longer see the terms and conditions of the purchase as the **** listing has long since been removed, but I recommend you review any guarantees they make very carefully if you consider purchasing from them and do not make the same mistake as I did.Numerous issues presented themselves during the assembly phase :1. An odd coating was present on the machined surfaces that rubbed off, likely to hide all the dings and scratches. The car leaked profusely from the head after it was built.2. Several of the threaded holes had bad threads which pulled out as soon as you went to torque down a bolt.I made the mistake of proceeding with the build and accommodating on my end as I did not want to go through the hassle of returning this head and sourcing another one.At around 5000 mi in, the head gasket failed and coolant started entering cylinder 1. There was no overheat or user error condition. Upon disassembly, the heat tab was still present, yet the head was warped >0.005 in several places. The professionally built short block was still in mint condition and the block surface was perfectly flat. The head therefore likely came to me rebuilt in this condition, and unfortunately I did not think to inspect the flatness myself at time of purchase since I had no reason to believe that the head was decked poorly.The engine now needs a new head and I have a paperweight sitting on my bench because these people either do not know what they are doing or their intent is to make a quick buck off of an unsuspecting buyer. I would not recommend putting the integrity of your engine in the hands of these people.