C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

New and need some help

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Old May 15, 2025 | 10:01 PM
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Jtkova
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Default New and need some help

I recently acquired a 94 Corvette ...bare block with casting number 10125327...I'm needing to know what what crankshaft I need to use....I've read conflicting info on stroke length..any help would be greatly appreciated

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Old May 27, 2025 | 02:54 PM
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If it's still the LT1 block, then a 3.48" stroke LT1 crank should work. If it's a gen 1 350 then you could run really any stroke you want for your displacement needs but stock should be that 3.48" stroke. Just make sure you get one for your gen small block.
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