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Callies Magnum Series III Big Block Chevy Forged 4340 Crankshaft 4.500" stroke, 2.750" mains, 2.200" pins, internal balance, nitrided
- 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.
| Categories | Engine Components |
|---|---|
| Weight | 35.0900 |
| Manufacturer Part Number | BBQ42B-MG |
| Brand | Callies |
| Part Type | Crankshafts |
| Interchange Part Number | BBQ42B-MG |
| Stroke | 4.500 |
| Vehicle Make | Chevrolet |
| Engine Type | Big Block |
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