Valve Guide Pilots are critical to maintaining valve guide to valve seat concentricity. Our pilots are manufactured to the tight tolerances required for the best possible results. We stock a huge assortment of of Neway valve guide pilots that feature a .375" Top Size, common to Black & Decker valve seat grinders, Neway valve seat cutters, and most popular Valve Guide and Seat machines. We also have hundreds of Sioux .385" Top Size valve guide pilots in stock and ready to ship. If you have Kwik-Way Valve Seat Equipment, we have a large selection of .437" top size pilots ready to be put to work.