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Isky Racing Cams 3972-RH - Isky Red-Zone Max Endurance Roller Lifters

  • Lifters, Mechanical Roller Tappet, Vertical Link Bar, Ford, Set of 16
  • Application Specific
  • Estimated Ship Date: 2/20/2012
 
BrandIsky Racing Cams
Manufacturer's Part Number3972-RH
Part TypeLifters
Product LineIsky Red-Zone Max Endurance Roller Lifters
Summit Racing Part NumberISK-3972-RH
 
Lifter StyleMechanical roller
Lifter Link Bars IncludedYes
Link BarVertical
Lifter Outside Diameter (in)0.874 in.
Lifter OffsetNone
QuantitySold as a set of 16.
Notes0.750 in. bearing diameter.
 

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 to 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.

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