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#1 |
Registered User
![]() Join Date: Jan 2012
Location: Whitesboro, Texas
Posts: 932
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Exhaust Manifold Bolts/Washers ?
Educate me please.
I have a pair of ram horn exhaust manifolds and have been told I need special washers for the exhaust manifold bolts. I purchased a new set of bolts from classic parts and they did not come with washers. Would someone confirm the need of these special washers & possibly provide a source for them? Thanks!
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Cheers - Wayne Our Shop Build - http://67-72chevytrucks.com/vboard/s...d.php?t=620966 '55 Wagon Build - http://67-72chevytrucks.com/vboard/s...d.php?t=689157 1971 Cheyenne Super Ochre/White LWB 350 Auto - my son's truck "Nancy" 1972 GMC K2500 Custom 4X4 Olive LWB 400 SB 4-speed -"Greenie" - Restoration to begin after the '55 Nothing sucks more than that moment during an argument when you realize you're wrong. |
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#2 |
Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,630
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Re: Exhaust Manifold Bolts/Washers ?
Most people just throw them away but here's some.
http://www.gmclassicparts.com/EXHAUS...C_p_26794.html |
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#3 |
Registered User
![]() Join Date: Jan 2012
Location: Whitesboro, Texas
Posts: 932
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Re: Exhaust Manifold Bolts/Washers ?
Great! Thanks for the link.
Now - are these washers as necessary as I've been told? And what are special about them as compared to a regular old run of the mill washer? Thanks!
__________________
Cheers - Wayne Our Shop Build - http://67-72chevytrucks.com/vboard/s...d.php?t=620966 '55 Wagon Build - http://67-72chevytrucks.com/vboard/s...d.php?t=689157 1971 Cheyenne Super Ochre/White LWB 350 Auto - my son's truck "Nancy" 1972 GMC K2500 Custom 4X4 Olive LWB 400 SB 4-speed -"Greenie" - Restoration to begin after the '55 Nothing sucks more than that moment during an argument when you realize you're wrong. |
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#4 |
Senior Member
Join Date: Jan 2005
Location: Ontario, Kali
Posts: 2,427
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Re: Exhaust Manifold Bolts/Washers ?
I have used run of the mill grade 8 bolts and washers on my ramhorns since the early 80's with no problems....
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![]() ![]() It ain't yours, if you didn't build it! Last edited by Dano69c10; 06-29-2012 at 06:58 PM. |
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#5 |
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,219
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Re: Exhaust Manifold Bolts/Washers ?
I use grade 8 bolts & SAE grade 8 washers on all of them.
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#6 | ||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,943
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Re: Exhaust Manifold Bolts/Washers ?
^^^^ What WR said...
![]() Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
Quote:
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#7 |
Registered User
![]() Join Date: Jan 2012
Location: Whitesboro, Texas
Posts: 932
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Re: Exhaust Manifold Bolts/Washers ?
So - absolutely nothing 'special' about the factory washers?
__________________
Cheers - Wayne Our Shop Build - http://67-72chevytrucks.com/vboard/s...d.php?t=620966 '55 Wagon Build - http://67-72chevytrucks.com/vboard/s...d.php?t=689157 1971 Cheyenne Super Ochre/White LWB 350 Auto - my son's truck "Nancy" 1972 GMC K2500 Custom 4X4 Olive LWB 400 SB 4-speed -"Greenie" - Restoration to begin after the '55 Nothing sucks more than that moment during an argument when you realize you're wrong. |
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#8 |
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: Exhaust Manifold Bolts/Washers ?
They also use a locking tab thing that goes under two bolts and the tab folds up to lock them in. I don't have a good picture of it, but you can see them on this picture.
s/t
__________________
1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. ![]() |
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#9 |
Registered User
![]() Join Date: Jan 2012
Location: Whitesboro, Texas
Posts: 932
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Re: Exhaust Manifold Bolts/Washers ?
I just had an epiphany!
I think that’s what I was being told was ‘special’ – not the washer but the French lock. Thanks s/t!
__________________
Cheers - Wayne Our Shop Build - http://67-72chevytrucks.com/vboard/s...d.php?t=620966 '55 Wagon Build - http://67-72chevytrucks.com/vboard/s...d.php?t=689157 1971 Cheyenne Super Ochre/White LWB 350 Auto - my son's truck "Nancy" 1972 GMC K2500 Custom 4X4 Olive LWB 400 SB 4-speed -"Greenie" - Restoration to begin after the '55 Nothing sucks more than that moment during an argument when you realize you're wrong. |
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#10 |
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,219
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Re: Exhaust Manifold Bolts/Washers ?
The factory washers were smaller in dia. & a little thicker but SAE washer are close & work good.
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