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

Shorter crank hub....

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Old Sep 24, 2009 | 05:15 AM
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Default Shorter crank hub....

I put a double roller timing chain on my '96 and because of the extra sprocket I'm going to have belt alignment issues so I need a shorter crank hub. Where could I get one? Any links? Thanks!
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Old Sep 24, 2009 | 05:46 AM
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The earlier stock hubs will be even longer, I think you will need to get yours machined Mike. Assuming the crank gear is thicker doesn't that change the alignment for the crank position reluctor as well?
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Old Sep 24, 2009 | 05:48 AM
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Originally Posted by toptechx6
The earlier stock hubs will be even longer, I think you will need to get yours machined Mike. Assuming the crank gear is thicker doesn't that change the alignment for the crank position reluctor as well?
Yes, check your email
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Old Sep 24, 2009 | 05:50 AM
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Originally Posted by Weav's Vet
Yes, check your email
It must be in slow-mo this morning, nothing there.

Okay, got the message and replied.

Last edited by toptechx6; Sep 24, 2009 at 05:57 AM. Reason: new info
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Old Sep 24, 2009 | 02:08 PM
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The f-bodies used a different damper on the same crank hub because they used a different accessory setup. I'm not sure if the f-body is closer or further from the front of the engine, but simply swapping to the f-body damper *might* get it closer (but I've never compared them side by side).
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Old Sep 24, 2009 | 02:16 PM
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When you go to a double roller on a '96 you have to delete the crankshaft reluctor ring and then reuse the stock hub.

You will need to have the PCM reflashed otherwise you will get the SES light and various codes associated with the Crankshaft Position Sensor. If your state performs an OBD II emisions check, the car will fail unless the reflash is performed (although some states will still pass it if it passes a sniffer test).
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