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ISO LS3 4 inch crankshaft

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Old 06-22-2024, 06:19 AM
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Default ISO LS3 4 inch crankshaft

i’m looking to buy a ls3 4 inch crankshaft for my build, let me know if you guys know someone or have one, willing to pay for shipping, or driving certain distance! TIA
Old 06-22-2024, 05:23 PM
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No LS3 ever came with a 4” arm. Perhaps your thinking about the LS7 4” crank?
Any 4” aftermarket LS crank will fit in your LS block, including the OEM LS7 crank. The LS7 crank is hard to balance if using steel rods, and typically costs upwards of $800 to balance because of the tungsten or heavy metal needed to balance it. Your better off picking up a new 4” crank such as a Summit Pro Series, Scat, Eagle, etc. Molnar makes a great crank and are usually in stock.
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Old 06-22-2024, 05:25 PM
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Originally Posted by Che70velle
No LS3 ever came with a 4” arm. Perhaps your thinking about the LS7 4” crank?
Any 4” aftermarket LS crank will fit in your LS block, including the OEM LS7 crank. The LS7 crank is hard to balance if using steel rods, and typically costs upwards of $800 to balance because of the tungsten or heavy metal needed to balance it. Your better off picking up a new 4” crank such as a Summit Pro Series, Scat, Eagle, etc. Molnar makes a great crank and are usually in stock.

yeah sorry i probably should clarify i’m looking for a 4 inch stroker crank



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