Magnum Series III Big BlockChevy Forged 4340 Crankshaft 4.750" stroke, 2.750" mains, 2.200" pins, internal balance, nitrided
Magnum Series III Big BlockChevy Forged 4340 Crankshaft 4.750" stroke, 2.750" mains, 2.200" pins, internal balance, nitrided
Regular price
$8,102.53 NZD
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Sale price
$8,102.53 NZD
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- Average Weight for 4.500 in. Stroke Balanced to 2350g Bob. = 69 lbs
- Gun Drilled Mains, With 8 Full Counterweights
- All Rod Journals Lightened
- Dual post Keyways
- Heat Treatment = Perma Case Deep Nitride
- Requires narrow bearings
- Enhanced rod oiling through the use of main bearing oil hole lead-ins.
- Two Piece Seal Type
- Made in USA
Your request for a lightweight yet durable crankshaft for the powerful big block Chevy engine has been answered. Callies' design team has optimised 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 beenstrategically 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.