Thor73 on shapeways has some pilots for different engines that may help you. I have bought them, bought some from MTH, casted my own, and just made shims or spacers to make the stock pilots fixed.
Many posters here have shared their work on different engines.
So I'd have to ask, how good do you want it to look? How much do you wish to spend? Are you willing to do the job yourself?
The above posts are a great start. We need to know what engine you have as asked above.
