Road King Classic EFI FLHRC. Softail Night Train EFI FXSTBI. Super Glide Custom EFI FXDCI. The Big Bore kit yields excellent results with stock cylinder heads (not for Twin Cooled motors) unless noted. Easy installation: no need to bore or split existing cases, just swap the cylinders (unless noted).
Cylinders are constructed from premium aluminum castings with cast-in iron liners. Kits include cylinders, pistons, rings and gaskets (head, base and exhaust). Black or silver powder-coat finish.