8 Unfortunately, things did not turn out exactly like we planned with the bottom end. When we bought the truck, we were told the engine didn’t have many miles since a rebuild and that the head gaskets had been blown. For $900, the truck was a great deal and it wasn’t a big problem since we planned on doing the Summit Top End kit right from the get go. When we cracked into the engine, we found a slightly different tale. It looks like the engine either had a lot more miles than stated or had been really pounded on when the head gaskets blew. We’re also not sure how long it had been sitting since the head gaskets had been blown—the license plate tags were last updated in 2010, so we assume at least two years. The surface rust and marks on the cylinder walls ensured this bottom end was not usable in its current state.