One piece billet valve cover fits 4BT Cummins 8 valve. Designed for aftermarket injection lines run either over top or around front and back of cover. We also make one that is notched for to fit over the stock lines. 3.25″ total height will clear most all aftermarket studs. Taller than stock covers. Also acts as a girdle for the rocker pedestals to help stabilize them when using high spring pressures and rpm. Can be engraved with Keating Machine logo on top. Can be ordered custom engraved or without engraving, call for details. Sealed with individual o-rings to head.