I have a complete set of Schubeck coated lifters I pulled out of my engine this spring to swap over to a hydraulic roller. They are approximately 7 years old and still look brand new. I quit racing this particular car and turned it into a street car, so switched it over for that reason. Ran great with the flat tappet. If anyone wants these lifters, pm me and I will send pics and you can make me an offer.