Header Bolts
Thread Starter
Safety Car
Joined: Sep 2000
Posts: 3,524
Likes: 4
From: Hinckley Ohio
Header Bolts
Stage 8 for my Exotic Muscle long tubes??
8911------3/8-16x3/4
8911A-----3/8-16x1
Are these the ones......use 1"???
http://www.stage8.com/AutomotiveStart.htm
Do the click here for close up view...
Learning something new......I thought people were talking about a Grade 8 bolt......
Do I finally have it figured out??
Best place to buy??
8911------3/8-16x3/4
8911A-----3/8-16x1
Are these the ones......use 1"???
http://www.stage8.com/AutomotiveStart.htm
Do the click here for close up view...
Learning something new......I thought people were talking about a Grade 8 bolt......
Do I finally have it figured out??
Best place to buy??
Last edited by LT4BUD; Jan 10, 2005 at 09:54 PM.
Pro
Joined: Jan 2005
Posts: 686
Likes: 62
From: San Jose Ca
Stage 8's are a PITA. What I use are Mr. Gasket header bolts with a reduced hex of 3/8" instead of the normal header bolt that has a 7/16" head. I also use their special header bolt lock washers. With this combo, I can easily get a 1/4" drive socket on ALL the bolts on my '94 and have NEVER had a bolt back out or had an exhaust leak in the nine years that I've had them. And that's with having them off and on more times than I can count (for performance work, not because they were leaking). 
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
It is a good idea to retighten after the first half dozen or so heat cycles. The bolts loosen from the gaskets being compressed and taking a "set". Even Stage 8's can't prevent that.
RACE ON!!!
RACE ON!!!
Burning Brakes
Joined: Feb 2002
Posts: 804
Likes: 5
From: Fresno CA
I use the ARP stainless header bolts. They have a 5/16" head so it's easy to get a wrench on them and they won't rust due to the thermo cycling like a standard header bolt...just make sure to retighten them a few times after the engine runs and cools off...sets the gaskets then you won't have a problem.
Burning Brakes
Joined: Feb 2002
Posts: 804
Likes: 5
From: Fresno CA
All the ones I've ever seen including the set I put on my JBA headers on my TBI Blazer were cad plated steel...the concept is pretty good but I wouldn't use them on Corvette headers that don't have alot of room to get to the bolt..I like the ARP reduced head size so much better...just my opinion though..
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Thread Starter
Safety Car
Joined: Sep 2000
Posts: 3,524
Likes: 4
From: Hinckley Ohio
Thread Starter
Safety Car
Joined: Sep 2000
Posts: 3,524
Likes: 4
From: Hinckley Ohio
What I really am after are the ones that Exotic Muscle sells for their long tube headers.......Merle said stainless
Again I thought at first he was talking " Grade 8"......now I am sure he did say "Stage8"...
Thought I would just pick them up locally at Summit and save shipping...
Again I thought at first he was talking " Grade 8"......now I am sure he did say "Stage8"...
Thought I would just pick them up locally at Summit and save shipping...
Burning Brakes
Joined: Oct 2002
Posts: 1,193
Likes: 1
From: Meadville PA
well ya better call first they were out of stock of the small head 1" stainless header bolts as of thursday.. and on back order till later this month ... i just ordered my header gaskets and such last weds and they told me this.. said they were not sure when they would have stock again ... good luck ..
Thread Starter
Safety Car
Joined: Sep 2000
Posts: 3,524
Likes: 4
From: Hinckley Ohio
Originally Posted by 1989redvette
well ya better call first they were out of stock of the small head 1" stainless header bolts as of thursday.. and on back order till later this month ... i just ordered my header gaskets and such last weds and they told me this.. said they were not sure when they would have stock again ... good luck ..
??????????????????
Race Director
Joined: Aug 2003
Posts: 11,043
Likes: 3
From: San Jose Pat Tillman - American Hero
That price (69.95) from Summit seems to be higher than the price I paid from Merle when I ordered my headers. IIRC, I paid 49.95 from EM. The only problem with the Stage 8s that my installation shop noted, was that the locks didn't always work "as is". Some had to be ground down to fit properly against the primary.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by LT4BUD
I just talked to Summit and they have Stage8 P/N 8951 in stock....these are 3/8-16x1" 6pt, stainless steel...$69.95
??????????????????
??????????????????
RACE ON!!!
Burning Brakes
Joined: Oct 2002
Posts: 1,193
Likes: 1
From: Meadville PA
Originally Posted by CFI-EFI
WOW!!! That's a lot of money to spend for bolts, when a $10.00-$15.00 set will do as well.
RACE ON!!!
RACE ON!!!
no doubt i ordered my stainless 3/8 12 point by 1" for 14 bucks ... should be here today i ordered sat night...
are the stage 8 bolts the smaller 3/8 head??? i tried the standard 7/16 on my headers and they will not work to large in diameter..
Thread Starter
Safety Car
Joined: Sep 2000
Posts: 3,524
Likes: 4
From: Hinckley Ohio
Originally Posted by CFI-EFI
WOW!!! That's a lot of money to spend for bolts, when a $10.00-$15.00 set will do as well.
RACE ON!!!
RACE ON!!!
Geez I hate to waste money, but I want it to work the first time and hopefully last for years......
Plan on going with Felpro 1406 gaskets with Stage8 8951 ss bolts
I hope the "locking" feature of the Stage8's really work......
Is there really something for $10-15 that will really do the job, Bud screwed up again....I just ordered them for $62 from Powerhouse Performance.....
Perfusion, I wonder what the $49 ones were from EM, you are right, thats what Merle quoted me, plus shipping....do you have part number, were they ss or plated??
Last edited by LT4BUD; Jan 11, 2005 at 06:43 PM.
Race Director
Joined: Feb 2003
Posts: 11,671
Likes: 20
From: Lake Wylie SC
I used allen socket head S/S 1" bolts. With these I can even use a torque wrench on the bolts. Don't forget to use high temp anti-seize on the bolts. With the right torque, they don't seem to loosen.
Last edited by Strick; Jan 11, 2005 at 04:00 PM.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by LT4BUD
Geez I hate to waste money, but I want it to work the first time and hopefully last for years......
Plan on going with Felpro 1406 gaskets with Stage8 8951 ss bolts
I hope the "locking" feature of the Stage8's really work......
Is there really something for $10-15 that will really do the job,
Plan on going with Felpro 1406 gaskets with Stage8 8951 ss bolts
I hope the "locking" feature of the Stage8's really work......
Is there really something for $10-15 that will really do the job,
Conventional header bolts will work just as well. Use the longest bolts that don't bottom out and keep them tight through the first half dozen heat cycles, or so and you'll be happier and richer.
RACE ON!!!
Racer
Joined: Jul 2004
Posts: 434
Likes: 0
From: Santa Barbara Minnesota
Originally Posted by CFI-EFI
It is a good idea to retighten after the first half dozen or so heat cycles. The bolts loosen from the gaskets being compressed and taking a "set". Even Stage 8's can't prevent that.
RACE ON!!!
RACE ON!!!