We are experienced in aluminium cylinder head repair work. The images below show a Lotus Twin cam head that had been fitted with very large seat inserts, which had then recessed.
The head was welded and then re-machined in house, and new seats fitted and cut to the correct height. We then pressure tested the casting to ensure that it was water tight before assembling it ready to be fitted back on the car.

The image below shows an Alfa Romeo head undergoing restoration work. This head was in particularly bad condition, showing that even the worst aluminium castings can be restored back to their former self.

More Lotus Twincam heads in for various work