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Callies-Magnum-Chevy LSX Crankshafts

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Availability: In stock

$1,963.00

Quick Overview

Callies



  • Sold Counterweight Preped for a 1785 Bobweight

  • Gun Drilled Mains

  • All Rod Journals Lightened

  • Dual Linear Post Keyways

  • Stroke Availability from 2.600 in. to 4.600 in.

  • Heat Treatment = Perma Case Deep Nitride

  • Average Weight for 4.000 in. Stroke Balanced to 1750g Bob. = 47 lbs.


Magnum

Callies-Magnum-Chevy LSX Crankshafts

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$1,963.00

Details

Your request for a lightweight yet durable crankshaft for the powerful big block Chevy engine has been answered. Callies’ design team has optimized material distribution throughout this crankshaft to produce a component that is strong yet easy to balance.

Many BBC crankshafts are counterweighted to offset simple balance forces detected at main bearings 1 and 5 by today’s precision balancers. Callies Magnum Mass Correct counterweights have been strategically placed to reduce imbalance forces over the entire length of the shaft. The result is a crankshaft that exhibits superior bearing life and minimal wear.

Material distribution over the rod journal arms and critical strength generating regions of Magnum BBC crankshafts has been enhanced as well. These slight design changes improve the strength to weight ratio ensuring each Magnum crank will have an extended fatigue-resistant life.

Our Dual Arc leading edges create a unique counterweight that is beneficial in the reduction of disruptive crankcase windage. This profile characteristic is of greatest value in high RPM, large displacement engines.

A typical 4.500 stroke BBC shaft will have a finished weight of 69 lbs. All rod journals are drilled with generously radiused lightening holes. Each counterweight features Callies’ (Dual Arc) windage reducing leading edge.

Part #

Stroke

Pin Main
APJ31T-MG 3.7500 2.1000 LS-1 GM Small Block – 2.559
APJ31V-MG 3.7500 2.1000 LS-1 GM Small Block – 2.559
APC31T-MG 3.9000 2.1000 LS-1 GM Small Block – 2.559
APC3XV-MG 3.9000 2.2000 LS-1 GM Small Block – 2.559
APO34V-MG 4.0000 2.0000 LS-1 GM Small Block – 2.559
APZ31T-MG 4.1000 2.1000 LS-1 GM Small Block – 2.559
APZ31V-MG 4.1000 2.1000 LS-1 GM Small Block – 2.559
AWZ31T-MG 4.1000 2.1000 LS-1 GM Small Block – 2.559
APU31T-MG 4.1250 2.1000 LS-1 GM Small Block – 2.559
APQ31T-MG 4.5000 2.1000 LS-1 GM Small Block – 2.559
AWQ31T-MG 4.5000 2.1000 LS-1 GM Small Block – 2.559

 Strokes over 4.250-Base Price does not include Heavy Metal or Counterweight Prep