Whats an estimated price to replace blown valves in 98 ford f150 v8 Triton?
Hard to estimate without opening up the engine. Call a couple mechanics/engine builders in your area for better estimates. Beside the valves, there might be some machining work and other parts that need replacing. Labor will be a huge cost for this project, and different shops will charge you differently. This way you can find one who can do the work for you.
Search Ford F-150 Questions
Ford F-150 Experts