lt1 keyed crank hub
Thread Starter
Registered User
Joined: Jan 2007
Posts: 164
lt1 keyed crank hub
http://www.thunderracing.com/catalog...ories&pcid=239
Anyone else make or sale this? It's been 8 weeks know and I still don't have mine . They just keep telling me it will ship next week .
Anyone else make or sale this? It's been 8 weeks know and I still don't have mine . They just keep telling me it will ship next week .
Registered User
Joined: Oct 2004
Posts: 809
From: Houston, TX
Get this one, as it's what I went with and very very good quality. Plus no waiting:
http://www.jegs.com/i/JEGS/555/51607/10002/-1
http://www.jegs.com/i/JEGS/555/51609/10002/-1
Choose the right one for your year (see both links above).
It is keyed and the only mod you need to do is pull the locator/dowl pin out to get your stock balancer/pulley to bolt right up.
http://www.jegs.com/i/JEGS/555/51607/10002/-1
http://www.jegs.com/i/JEGS/555/51609/10002/-1
Choose the right one for your year (see both links above).
It is keyed and the only mod you need to do is pull the locator/dowl pin out to get your stock balancer/pulley to bolt right up.
Thread Starter
Registered User
Joined: Jan 2007
Posts: 164
Get this one, as it's what I went with and very very good quality. Plus no waiting:
http://www.jegs.com/i/JEGS/555/51607/10002/-1
http://www.jegs.com/i/JEGS/555/51609/10002/-1
Choose the right one for your year (see both links above).
It is keyed and the only mod you need to do is pull the locator/dowl pin out to get your stock balancer/pulley to bolt right up.
http://www.jegs.com/i/JEGS/555/51607/10002/-1
http://www.jegs.com/i/JEGS/555/51609/10002/-1
Choose the right one for your year (see both links above).
It is keyed and the only mod you need to do is pull the locator/dowl pin out to get your stock balancer/pulley to bolt right up.
That will work . Thanks!
Registered User
Joined: Oct 2004
Posts: 809
From: Houston, TX
No - the LT1 crank already has a keyway, it's just not used from the factory as the stock crank hub is a press fit as is this one. You don't have to use the keyway to install this hub as it fits just as tight as the original.
Of course if you want to key it you can and all you gotta do is get some various size keys from your local AP and see which one fits.
Of course if you want to key it you can and all you gotta do is get some various size keys from your local AP and see which one fits.
Registered User
Joined: Jul 2002
Posts: 1,942
From: Kissimmee, Fl, USA
No - the LT1 crank already has a keyway, it's just not used from the factory as the stock crank hub is a press fit as is this one. You don't have to use the keyway to install this hub as it fits just as tight as the original.
Of course if you want to key it you can and all you gotta do is get some various size keys from your local AP and see which one fits.
Of course if you want to key it you can and all you gotta do is get some various size keys from your local AP and see which one fits.
Actually, all you have to do is take the stock one to the auto parts store and buy one without the weird cutout.
Registered User
Joined: Oct 2004
Posts: 809
From: Houston, TX
Probably won't find a crank hub at your local AP store and if you do it's probably just as much as the billett piece from JEGS I posted earlier. Ran into this myself a while back as I bent the crank hub removing it and had to get a new one that was keyed already as we keyed the Eagle crank when we did the 383 many years ago.
Registered User
Joined: Mar 2005
Posts: 152
From: Raleigh, N.C.
Dang it! I'm in the same boat. Both Jegs and Thunderracing are out of the part. They keep saying it will ship in a couple weeks.
Well, time to find a machine shop here in Raleigh with an EDM machine. Anyone know what depth I should tell them to cut?
Well, time to find a machine shop here in Raleigh with an EDM machine. Anyone know what depth I should tell them to cut?
Registered User
Joined: Feb 2004
Posts: 2,182
From: Moore OK
I run this one:
http://www.cnc-motorsports.com/produ...114&CtgID=9919
No pic but is black with a red ring on the front and timing marks. SFI too.
http://www.cnc-motorsports.com/produ...114&CtgID=9919
No pic but is black with a red ring on the front and timing marks. SFI too.
Registered User
Joined: May 2004
Posts: 2,001
From: Bay Area, CA
I don't see why this is a big issue, any decent engine shop should have the bushing and broach to put the slot in your stock damper for < $50 like Daryl mentioned earlier. This is common tooling that is used to setup dual keyways on blower motors.
Registered User
Joined: Mar 2004
Posts: 283
Are there any differences in performance/longevity if you opt to slot your OE hub VS. opting to buy a slotted aftermarket hub? Balancing...anything like that? Im trying to get some insight on this issue. My project is will be back on the road pretty soon