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Big Block Chevrolet Engine Crankshaft Specifications

Big Block Chevrolet Crankshaft Specifications

 

Casting #EngineForged/CastStrokeRear Main SealNotes
6223 396 / 402 / 427 Forged 3.76" Stroke 2-piece 1053 steel
7115 396 / 402 / 427 Forged 3.76" Stroke 2-piece Nitrided, cross drilled, 5140 steel
3804816 396 / 402 / 427 Cast 3.76" Stroke 2-piece  
3856223 396 Forged 3.76" Stroke 2-piece  
3863114 402   3.76" Stroke 2-piece  
3863144 396 / 402   3.76" Stroke 2-piece  
3874874 396 / 402   3.76" Stroke 2-piece  
3879621 427 Forged 3.76" Stroke 2-piece  
3882841 396 Forged 3.76" Stroke 2-piece cross drilled, nitrided
3882842 427 Forged 3.76" Stroke 2-piece cross drilled, nitrided
3882847     3.76" Stroke 2-piece  
3882848     3.76" Stroke 2-piece  
3882849 427 Forged 3.76" Stroke 2-piece  
3887114 396 Forged 3.76" Stroke 2-piece nitrided, 5140 steel
3904815 366T / 396 / 402 / 427T   3.76" Stroke 2-piece  
3941180     3.76" Stroke 2-piece  
3942411     3.76" Stroke 2-piece  
3965746   Forged 3.76" Stroke 2-piece Semi Finished, Forged
3993804   Forged 3.76" Stroke 2-piece Raw, 5140 steel
10114186 427T Forged 3.76" Stroke 1-piece 1053 steel 1991 up Gen.V and Gen.VI
10114187 366T Cast 3.76" Stroke 1-piece 1991 Gen.V and Gen.VI
3520 454 Forged 4.00" Stroke 2-piece Cross drilled. 1053 steel
3521 454 Forged 4.00" Stroke 2-piece Cross drilled, 5140
3524 454 Forged 4.00" Stroke 2-piece  
7416 454 Forged 4.00" Stroke 2-piece Cross drilled, 1053 steel
7463 454 Forged 4.00" Stroke 2-piece  
336782 454 Cast 4.00" Stroke 2-piece  
353039 454 Cast 4.00" Stroke 2-piece  
353638 454   4.00" Stroke 2-piece  
359730 454   4.00" Stroke 2-piece  
3962523 454 Forged 4.00" Stroke 2-piece  
3963523 454   4.00" Stroke 2-piece  
3963524 454 Forged 4.00" Stroke 2-piece  
3967416 454 Forged 4.00" Stroke 2-piece  
3967463 454 Forged 4.00" Stroke 2-piece  
3975945 454   4.00" Stroke 2-piece  
3963521 454 Forged 4.00" Stroke 2-piece  
3965753 454 Forged 4.00" Stroke 2-piece cross drilled, 5140 steel
3975495 454   4.00" Stroke 2-piece Semi-finished, 5140 steel
3993878 454 Forged 4.00" Stroke 2-piece  
10051169 454 Forged 4.00" Stroke 2-piece Raw casting
10114188 454 Cast 4.00" Stroke 1-piece 1991 and up Gen.V and VI
14097044 454 / 502 Forged 4.00" Stroke 1-piece 1053 steel, 1991 and up Gen.V and VI
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