* All prices are in AUD incl. GST.

Chevrolet 400 Magnum Big Block Post 3.875'' Stroke 2.100'' Pin Crankshaft


  • Stroke Range of 2.600 in. to 4.300 in.
  • 2.100 – 2.000 – 1.888 Rod Journal Diameters.
  • 400 – 350 – 283 Main Bearing Diameters.
  • BBC Post or SBC Post.
  • One or Two Piece Type Rear Seal Flange.
  • Gun Drilled Mains.
  • All Rod Journals Lightened.


Part No. Description Price Shop
CAL-SMM21A-MG Crankshaft Small Block Chevy 3.875 Stroke 2.649 (400 Main) 2.100 Rod Journal 2 Piece Rear Main Seal 4340 Forged Steel Big Block Post (Crank Snout) $3,455.29    Add to Cart   

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