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Lunati Pro Series Crankshafts


Lunati
Lunati Pro Series Crankshafts

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Lunati Pro Series forged crankshafts are top of the line units, manufactured from the highest quality 4340 certified steel. Their 4340 steel forgings meet aircraft quality standards for material cleanliness and purity. Every crank is American forged, American machined and quality checked to meet our exact specifications including: a shaft surface finish of grade 5 RMS or better, journal radii are ground to .140 inch, roundness of each journal is .0001 inch or less and each rod journal is drilled with a 7/8 inch or 3/4 inch lightening hole to reduce the inertia weight of the crankshaft. The Pro Series by Lunati is engineered with high performance street and all-out race engines in mind. Pro Series Crankshafts have been successfully used in 1,500+ hp applications.


2 Products
Pro Series Crankshaft

638-BP421IN
Pro Series Crankshaft
  • Big Block Chevy
  • Stroke: 4.250"
  • Main Bearing: 2.750"
  • Rod Journals: 2.200"
  • Minimum Rod Length: 6.385"
  • Rear Main Seal: 2-piece
  • $2,018.99
    Order Today Ships 12/29/14

    638-BQ421KN
    Pro Series Crankshaft
  • Big Block Chevy
  • Stroke: 4.500 in.
  • Main Bearing: 2.750 in.
  • Rod Journals: 2.200 in.
  • Minimum Rod Length: 6.535 in.
  • Rear Main Seal: 2-piece
  • $2,018.99
    Order Today Ships 12/29/14

    2 Products