Being an A&P myself and now quite heavily involved in the aircraft certification world, I would suggest you thoroughly evaluate the approval means by which you plan on returning this engine to service. These parts and materials and the data you
are going to use for accomplishing this alteration will require FAA approval. I also would suggest you contact your local flight standards office for some guidance on approving the alteration. Alterations to airplanes are a little more complicated than cars, you can't just stick on an aftermarket part and go blasting off into the wild blue yonder, because if that part fails you can't just pull over to the side of the road. Good luck with your endeavor.