The number of valves and type of engine a car has have a significant impact on the typical cost of a valve job. For a 4-cylinder engine, each valve repair costs about $85 on average.
The poppet valves and their seats, which regulate the flow of air and fuel to move the pistons, are to be resurfaced as part of a valve work. A valve work on a newer engine (V6 or V8) might cost up to $125 for each damaged valve, with the price going higher for engines with more than 12 valves. As a result, the overall cost of a valve job may exceed $1,000.
