I bought a used cylinder head and gave it to the machine shop for any repair it needs. My vehicle has an issue of blowing spark plug. It happens twice and dealer told me i have to replace the head. I can't afford dealer price so I took it to the small shop to replace head. After they replace the head, I heard the tic noise from the lifters. They showed me there are 2 lifters on the front making noises. Machine shop who rebuild that head is already closed and the shop refused to fix that issue. I already blown around 2000$ in this repairment. My question is, it is possible if i take to another shop they can replace those lifters as they are the two on the front?
99 Ford Expedition 5.4 4WD