Fueling 4017 Race Lifters M8

  • Full-travel hydraulic lifters made from machined steel
  • Exceed the needs of large-lift camshafts and higher spring pressures with a slower bleed-down rate
  • Maintain proper and critical oil flow to valves, springs, rockers, shafts and valve guides
  • Increase engine rpm and valvetrain stability; decreases valve float for maximum valve lift
  • Recommended for both strip and performance street engines
  • High-volume oil pump recommended.
  • Recommended for engines running higher than 185 lb. valve spring seat pressure.
  • Made in the U.S.A.