Standard practice is to replace everything in a kit, which for your engine is very inexpensive. They typically include a new timing belt, idler pulley, and tensioner pulley. To avoid future problems, all mechanics will also replace the water pump since it is one of the timing belt's pulleys, and the hydraulic tensioner.
The bent valves will also have to be replaced. That's a job for an engine machine shop. They will do a leak-check on them and prep the gasket surfaces with the proper finish for the new head gaskets to bite into and seal.
Tuesday, June 10th, 2014 AT 2:09 PM