COMP Cams .585" Lift Beehive Valve Spring Kit for 2001–2005 GM 6.6L Duramax (LB7/LLY) includes beehive springs, steel retainers, spring seats and valve seals for a drop‑in upgrade. The beehive profile reduces top diameter to allow lighter retainers and lower valve‑train weight, while the ovate shape raises load capacity and stability to help prevent valve float at higher RPM and under boost.
COMP Cams Valve Spring Kit 0.585in Lift Beehive 01-05 GM 6.6L Duramax Diesel (LB7/LLY)