Isky 276-RHM-904 Red-Zone Max Endurance Roller Lifters

Maximum endurance roller lifters from Isky. Red-Zone roller lifters feature the Marathon roller bearing that keeps on rolling longer. Marathon bearings utilize a larger diameter pin and a shock-absorbing thicker outer race for higher fracture toughness. The resulting increased cross-sectional area helps prevent premature bearing failures, even under the sustained rpm red-line abuse of professional endurance racing. In drag racing, Marathon bearings withstand higher (up to 1/2 ton) spring loads, delivering more than twice the number of runs between rebuilds.
Maximum endurance roller lifters from Isky. Red-Zone roller lifters feature the Marathon roller bearing that keeps on rolling longer. Marathon bearings utilize a larger diameter pin and a shock-absorbing thicker outer race for higher fracture toughness. The resulting increased cross-sectional area helps prevent premature bearing failures, even under the sustained rpm red-line abuse of professional endurance racing. In drag racing, Marathon bearings withstand higher (up to 1/2 ton) spring loads, delivering more than twice the number of runs between rebuilds. 

Lifter Style: Mechanical roller 
Lifter Link Bars Included: Yes 
Link Bar: Vertical 
Lifter Outside Diameter (in): 0.903 in. 
Lifter Offset: None