CRANKSHAFTS
GM Duramax 6.6L Diesel 4340 Forged Steel Crankshaft Callies
Compstar Durastar features Spec 4340 material, multi heat-treated, double stress-relieved, deep nitride-hardened, large radii in all journals, keyed shear-proof timing gear fit, drilled rod journals, dual-keyed damper fit, accepts OEM post and flange bolts, accepts OEM flywheels/flexplates, machined flow, main bearing oil holes with lead-ins for enhanced cold start oil, precision ground and micro-polished to 6 Ra. Conservatively rated for 800 HP & 800 ft./lb. torque.
Min. Rod Length Rod Pin
Rear Main Seal
Target Bobweight Grams
Approx. Weight Lbs.
Part No.
Description
Stroke
Main
Balance
CALD333M81-CS 2016-Prior Duramax 6.6L
3.898"
6.418" 2.480" OEM OEM Ext.
†
84
† No specific bobweight listed due to many rod lengths depending on application. Can be balanced front or rear.
PERFORMANCE BEARINGS
GM 6.6L/403 6600 Duramax Diesel LB7 2001-04, LLY 2004-05 Application Clevite H Series Rod Bearings, Standard M77CB1805H Rod Bearings, Extra .001" Oil Clearance M77CB1805HX Rod Bearings, 25mm M77CB1805H25MM Main Bearings, Standard M77MS2218H Main Bearings, .001" Extra Clearance M77MS2218HX
M77CB1805H
OEM REPLACEMENT BEARINGS
GM Duramax 6.6L Diesel
Clevite P-Series
Application
Dura-Bond
Rod Bearings, 2001-16 6.6L, Standard Main Bearings, 2001-16 6.6L, 25mm Main Bearings, 2001-16 6.6L, 50mm
M77CB1805P
—
M77MS2218P25MM — M77MS2218P50MM —
Cam Bearings, 2001-18 6.6L Main Bearings, 2001-16 6.6L
M77SH1999S M77MS2218P † M77TW-610S
DURGM-8
—
Thrust Washer .118" Thick — † Requires thrust washer set, TW-610S, not included. Specify sizing (std., .25mm, or .50mm) when ordering.
M77MS2218P
516 2021-22 ENGINE BUILDER CATALOG
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