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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
Meant for increased all around efficiency
Designed for both performance builds and reliable daily drivers
PCM Unlock Options (Required for 2015+):
2005-2020 Gen IV LS DOD/AFM Delete Tuning
it’s time to upgrade to a dual spring setup
2001-2016 Duramax 6.6L Callies Durastar Forged Stock Stroke Crankshaft (D333M81-CS) 2003 - 2007 Ford Additives & Oils Meant for increased all around2001 2016 Duramax 6. 6L Callies Durastar Forged Stock Stroke Crankshaft (D333M81 CS) Callies Durastar crankshafts are designed to be substantially stronger than OEM shafts currently found in GMs popular Duramax diesel. This improvement is the result of substantially stronger steel, considerably deeper nitride layer and unique machining features. Durastar crankshafts are intended to be externally balanced with stock damper and flywheel configurations.
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