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  • Magnum – Big Block Chevy Image
  • Magnum – Big Block Chevy

  • Magnum – Big Block Chevy

    Standard Features

    • Stroke Range of 3.500 in. to 5.500 in.
    • 2.200 – 2.100 – 2.000 Rod Journal Diameters
    • Standard BBC or 409 Main Bearing Diameters
    • Multiple Post Key-way and Bolt Hole Configurations
    • Enhanced rod oiling through the use of main bearing oil hole lead-ins.
    • One and Two Piece Seal Type Flanges or Star Flange
    • Gun Drilled Mains, With 8 Full Counterweights
    • All Rod Journals Lightened
  • Below is only a partial listing of part numbers. Please call for additional part number information and availability.

    Stroke Main Pins  Cammed for rod length Part # Price
    Tier 1
    4.000 2.750 2.200 6.385 BBO42B-MG $2,056.00
    4.250 2.750 2.200 6.385 BBP42B-MG $2,056.00
    4.375 2.750 2.200 6.535 BBB42B-MG $2,056.00
    4.500 2.750 2.200 6.700 BBQ42B-MG $2,056.00
    4.750 2.750 2.200 6.700 BBS42B-MG $2,056.00
     Tier 2
    3.750 2.750 2.200 6.135 BBJ42B-MG $2,105.00
    4.125 2.750 2.200 6.385 BBU42B-MG $2,105.00
    4.625 2.750 2.200 6.700 BBR42B-MG $2,105.00
    Tier 3 All other Strokes, Bearing and Main Combinations  Including the Following
    4.875 2.750 2.200 7.000 BBI42B-MG $2,312.00
    5.000 2.750 2.200 7.000 BBV42B-MG $2,312.00
    5.300 2.750 2.200 7.250 BB542B-MG $2,312.00

    Custom under sizes up to .0015 add – $150.00

    All 4.900 Spread Bore Crankshafts add – $440.00

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