383 Forged Steel Crankshaft, Forged 4340 steel crankshaft used to create 383-cubic-inchengines with 3.800" stroke. Rod journals are 2.10" and mains are standard 350 size.

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P/N 12489436 383 Forged Steel Crankshaft

383 Forged Steel Crankshaft, Forged 4340 steel crankshaft used to create 383-cubic-inchengines with 3.800" stroke. Rod journals are 2.10" and mains are standard 350 size.

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List Price: $1,299.23
Superior Price: $1,139.38
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Product Code: 12489436

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Description

Technical Specs

Extended Information

GM Performance Parts crankshafts listed in this section are thebackbone of a high-performance engine build and are the same components that go into GMPP crate engines.

Features

Forged 4340 steel crankshaft used to create 383-cubic-inchengines with 3.800" stroke. Rod journals are 2.10" and mains are standard 350 size.
Note: Should be used with connecting rods P/N12497870, standard pistons P/N 88962748 or 0.030" oversize pistons P/N 88962749, balancer P/N 12498008, and 1986-and-later one-piececrank seal design flywheel or flexplate.

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