Stage 8 Locking Fasteners
Thread Starter
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Stage 8 Locking Fasteners
I am getting ready to order something to help with header maintenance. The thread about shorty headers reminded me. After a days worth of cruising I have to come in and hit the bolts or I will have that pfft, pfft leak sound the next time out. I was thinking about the Stage 8 fasteners. Anyone using these and what length are you using. 1 inch should do it but I want to be sure. Any other suggestions on what brand or anything else to use is greatly appreciated.
Thanks,
Thanks,
Safety Car
Joined: May 2001
Posts: 3,758
Likes: 3
From: Surrey
I measured the depth of hole with a vernier, knocked a bit off of it (1/4"?) & then got some stainless set screws with allen heads (socket head?). Wound these in tight with a spring washer under each one & have never had to touch them since.
Burning Brakes
Joined: Oct 2002
Posts: 914
Likes: 14
From: Aberdeen, Scotland
Socket head capscrews!
UK Paul,
You're right the use of socket head capscrews greatly eases the installation. Just make sure to use a lock washer and you should have a good few years of maint free enjoyment!
carbster
You're right the use of socket head capscrews greatly eases the installation. Just make sure to use a lock washer and you should have a good few years of maint free enjoyment!
carbster
Race Director
Joined: Nov 2002
Posts: 12,142
Likes: 54
From: Taylor Michigan
Originally Posted by Eddie 70
I am getting ready to order something to help with header maintenance. The thread about shorty headers reminded me. After a days worth of cruising I have to come in and hit the bolts or I will have that pfft, pfft leak sound the next time out. I was thinking about the Stage 8 fasteners. Anyone using these and what length are you using. 1 inch should do it but I want to be sure. Any other suggestions on what brand or anything else to use is greatly appreciated.
Thanks,
Thanks,
I use um and like um, positive set up with the locks. Allen cap screws are for racers that can easily get to them.
Team Owner
Joined: Jun 2004
Posts: 20,216
Likes: 4
From: Smile, it's just the internet.
I've got them. Kind of a pain to install, but you only do it once. They look cool, too. I'm satisfied.
I ordered them from Summit. I just plugged in the application and they spit out the proper P/N. If that won't work, you should make sure thet twice the thread OD is engaging the head. 1 1/4" would be more than sufficient if the header flange+gasket is about 1/4".
I ordered them from Summit. I just plugged in the application and they spit out the proper P/N. If that won't work, you should make sure thet twice the thread OD is engaging the head. 1 1/4" would be more than sufficient if the header flange+gasket is about 1/4".
Last edited by CGGorman; Feb 17, 2005 at 10:56 AM.
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Le Mans Master
Joined: Jul 1999
Posts: 9,206
Likes: 17
From: Sewell NJ
If you get the stage 8s and install new header gaskets don't install the locks right away. it will take a few weeks for everything to settle in so you'll be retorqing the bolts. Once everything settles down you can install the locks and you probably won't have to touch them again. i used Percy's dead soft aluminum header gaskets with the stage 8s and I haven't touched either in over 2 years.
Thread Starter
Race Director
Joined: Feb 1999
Posts: 19,659
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From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
I've got newer header gaskets because burnt one out. The new ones should never burn out again. It just gets a little old retightening after a good cruise. Summit wants $70 for them in SS. 
That is kind of hard to swallow for a set of bolts. That makes them almost $6 apeice. WOW!!
That is kind of hard to swallow for a set of bolts. That makes them almost $6 apeice. WOW!!
Burning Brakes
Joined: Apr 2004
Posts: 814
Likes: 2
From: WESTLAKE LA
Originally Posted by Eddie 70
I've got newer header gaskets because burnt one out. The new ones should never burn out again. It just gets a little old retightening after a good cruise. Summit wants $70 for them in SS. That is kind of hard to swallow for a set of bolts. That makes them almost $6 apeice. WOW!!
That is kind of hard to swallow for a set of bolts. That makes them almost $6 apeice. WOW!!
Pro
Joined: Jan 2003
Posts: 642
Likes: 0
From: Baton Rouge LA
We use the Stage 8 bolts on every header install that we do. They are a PITA to start with but are great once they are installed. Saves you a lot of work down the road. The 8911s are the ones we generally use unless your headers flanges are extremely think. We have them in stock for $34.99.
http://www.thunderracing.com/catalog...mid=97&sid=222
.
http://www.thunderracing.com/catalog...mid=97&sid=222
.
Team Owner
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From: Florida
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St. Jude Donor '03 thru '26
Eddie: I have them as well, but do not remember the length. It is possble to put them on incorrectly. Guess how I know? 
It has been a couple of years ago, but seems as if I installed a couple of them backwards or something like that. When they loosen up I realized my mistake.
It has been a couple of years ago, but seems as if I installed a couple of them backwards or something like that. When they loosen up I realized my mistake.
Last edited by OHSIXX; Feb 17, 2005 at 03:07 PM.
Thread Starter
Race Director
Joined: Feb 1999
Posts: 19,659
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From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Got my Stage 8 bolts in the mail today. Wondering, what are you torqueing header bolts too. 30 Ft lbs seems like an awful lot. I just don't want to warp the flanges. Thanks guys.
Last edited by Eddie 70; Feb 24, 2005 at 10:35 AM.
Thread Starter
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
I did some searching on the subject and there were some 30 FT LBS thrown out and I think that is just a bit too much. 15 sounds good to me Tony.
Anyone else got any more ideas before I torque them to 15?
Anyone else got any more ideas before I torque them to 15?
Race Director
Joined: Jun 2000
Posts: 10,046
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From: FL
I had them on my Dynomax headers and they worked good.
For the Hooker sidepipes I went with bolts that had a smaller head plus the allen wrench feature that I got at Schucks. I have had no loosening problems which may be attrituable to the really nice thick flanges on the Hookers.
For the Hooker sidepipes I went with bolts that had a smaller head plus the allen wrench feature that I got at Schucks. I have had no loosening problems which may be attrituable to the really nice thick flanges on the Hookers.
