Keyed hub?
08-21-2011, 04:26 PM
#1
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Keyed hub? I am installing a efi 24x ignition on my newly rebuilt 355; should be around 370rwhp. I am wondering if I should buy a keyed hub or keep the factory hub.
Last edited by henry172; 08-22-2011 at 12:34 PM.
08-21-2011, 08:15 PM
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This is the hub I will be using http://cgi.ebay.com/ebaymotors/JEGS-...item2eb4a64c21; will it work with the stock balancer.
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08-22-2011, 11:46 AM
#9
I have an Eagle crank for reference.
08-22-2011, 01:02 PM
#10
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Fixed that for you.
^ With enough TQ and rpms the hub can spin even with the factory crank. A keyed hub is just insurance; if the hub spins it can screw up the end of the crank and changing the crank takes a lot more $$ than a keyed hup would have cost you.
^ With enough TQ and rpms the hub can spin even with the factory crank. A keyed hub is just insurance; if the hub spins it can screw up the end of the crank and changing the crank takes a lot more $$ than a keyed hup would have cost you.
08-22-2011, 11:52 PM
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^ Yep I was shocked when I first pulled the hub off a few years ago and noticed there was a spot in the crank for a key, but the hub was not keyed. There was a thread a few weeks ago where a fellow lt1 owner raced a mustang and ended up spinning the hub off on his new motor; I don't want that to happen to me so I ordered the one from jegs.
08-23-2011, 07:52 PM
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FWIW I had issues getting my Pioneer keyed hub on. They actually machined it either too small, or my compstar crank snout was too big. I had to have it put on a lathe. After that it was nice and tight. It goes on with my press tool easily. I like having a keyed hub, because you can be sure things are not going to move, and can mark your balancer for reference.
I have an extra pioneer keyed hub that was machined a little over, that i can let go for cheap.
I have an extra pioneer keyed hub that was machined a little over, that i can let go for cheap.
Last edited by 97LT1; 08-24-2011 at 09:31 PM.
08-25-2011, 08:16 AM
#17
I have a rebuilt LT1 punched to a 355 and we put a forged crank in it, the stock balancer assembly wouldn't fit the new crank because it had a key. So my local machine shop guy is going to have his crankshaft guy cut a key slot in it. It is a pretty simple process and takes only a day or two turn around. IMHO key your crank and balancer/hub. Cheap insurance against spin-off.
08-25-2011, 11:04 AM
#19
If you want to go overkill or ever have plans to supercharge you might want to get a double keyed hub / big block chevy outer diameter hub.
http://www.atiracing.com/products/da...arger.hubs.htm
http://www.atiracing.com/products/da...arger.hubs.htm