6.0 and 6.4 Ford Powerstroke solid roller lifters, made exclusively for KDD. These lifters are positively the strongest option available for all out - record setting performance. These feature larger diameter roller, high pressure pin oiling bushing design (no more needle bearings), as well as steel link bars (no more plastic lifter guides. Perfect for the competition level engine.
**WILL REQUIRE ADJUSTABLE ROCKER ARMS, AS WELL AS DIFFERENT LENGTH PUSHRODS**
**Custom solid roller cam grinds available as well**