250 Exhaust/Intake Manifold hardware - The 1947 - Present Chevrolet & GMC Truck Message Board Network

MWHurt · 03-12-2015, 01:41 PM

I'm looking for new mounting hardware for my intake and exhaust manifolds. I've got a 67 c-10 with a 250 (non-integrated cylinder head) and 3 speed Saginaw. I've searched the typical parts stores and I get some very confused looks from the children working there when I tell them I've got a 250. Does anyone know a good resource to identify the exact hardware that's on it before I have to take my daily driver apart and buy the hardware individually? I'd like to have them all on hand before I re-seal this thing. Thanks!

71meangreenc10 · 03-12-2015, 01:51 PM

Try this one.

http://www.langdonsstovebolt.com/

Smitty

Scottcoda · 03-13-2015, 01:31 PM

I replaced my exhaust bolts with studs threaded 3/8-16 on one end and 3/8-24 on the other.. My studs also had a recessed hex head on it so it was easy to reinstall.. The 3/8-16 goes into the block .. The advantage to this is your not fumbling with your intake and exhaust manifold while trying to bolt them in... Install the studs.. Hang your manifolds on then tighten your nuts.. If your look at the picture below and zoom in you can see the first stud on my manifolds.. Just to give you an idea.. If your looking to be more stock and want to keep the manifold "clips" your gonna find them in eBay or a junk yard.. They are not sold anywhere that I know of .. Good luck with your build

tx71smallblock · 05-15-2020, 05:29 PM

Quote:

Originally Posted by Scottcoda

I replaced my exhaust bolts with studs threaded 3/8-16 on one end and 3/8-24 on the other.. My studs also had a recessed hex head on it so it was easy to reinstall.. The 3/8-16 goes into the block .. The advantage to this is your not fumbling with your intake and exhaust manifold while trying to bolt them in... Install the studs.. Hang your manifolds on then tighten your nuts.. If your look at the picture below and zoom in you can see the first stud on my manifolds.. Just to give you an idea.. If your looking to be more stock and want to keep the manifold "clips" your gonna find them in eBay or a junk yard.. They are not sold anywhere that I know of .. Good luck with your build

How long are the threads on each side? They sell alot of different 3/8x16 to 3/8x24 studs

lowbucktrucks · 03-13-2015, 07:16 PM

if it helps anyfactory part # for stud is 3798281, part # is different for 68
part #'s come from gmc master parts book, may be different from chevy

**70STOVEBOLT** · 05-15-2020, 10:52 PM

I think I have a complete set of factory hardware I will look on Monday and get back to you.

RichardJ · 05-16-2020, 01:15 PM

http://67-72chevytrucks.com/vboard/s...ud#post8077723

Scottcoda, when I take a close,expanded look at your picture it looks like you still have the short, locator studs in the end holes of your head. Those should usually be replaced with longer threaded studs when using tube headers.

As in the link above, the heads originally had threaded studs in the 3rd hole in from each end of the head.

**70STOVEBOLT** · 05-19-2020, 03:57 PM

I do not have a full set of hardware.

03-12-2015, 01:41 PM	#1
MWHurt Registered User Join Date: Aug 2014 Location: Hubert Posts: 9	250 Exhaust/Intake Manifold hardware I'm looking for new mounting hardware for my intake and exhaust manifolds. I've got a 67 c-10 with a 250 (non-integrated cylinder head) and 3 speed Saginaw. I've searched the typical parts stores and I get some very confused looks from the children working there when I tell them I've got a 250. Does anyone know a good resource to identify the exact hardware that's on it before I have to take my daily driver apart and buy the hardware individually? I'd like to have them all on hand before I re-seal this thing. Thanks!

03-12-2015, 01:51 PM	#2
71meangreenc10 Its a Truck Thing...... Join Date: Dec 2004 Location: Sierra Vista, Arizona Posts: 3,179	Re: 250 Exhaust/Intake Manifold hardware Try this one. http://www.langdonsstovebolt.com/ Smitty __________________ 71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 69 C30 Former Motor Home, Flat Bed time 70 G20 Red-E-Kamp Conversion "I'm your Boogy Van"

03-13-2015, 01:31 PM	#3
Scottcoda Registered User Join Date: Jun 2013 Location: Brant Lake New York Posts: 224	Re: 250 Exhaust/Intake Manifold hardware I replaced my exhaust bolts with studs threaded 3/8-16 on one end and 3/8-24 on the other.. My studs also had a recessed hex head on it so it was easy to reinstall.. The 3/8-16 goes into the block .. The advantage to this is your not fumbling with your intake and exhaust manifold while trying to bolt them in... Install the studs.. Hang your manifolds on then tighten your nuts.. If your look at the picture below and zoom in you can see the first stud on my manifolds.. Just to give you an idea.. If your looking to be more stock and want to keep the manifold "clips" your gonna find them in eBay or a junk yard.. They are not sold anywhere that I know of .. Good luck with your build Attached Images __________________ 68 GMC 2500 stepside LWB 250CI Last edited by Scottcoda; 03-13-2015 at 01:43 PM.

03-13-2015, 07:16 PM	#5
lowbucktrucks Registered User Join Date: Dec 2014 Location: Buck creek, sc Posts: 90	Re: 250 Exhaust/Intake Manifold hardware if it helps anyfactory part # for stud is 3798281, part # is different for 68 part #'s come from gmc master parts book, may be different from chevy

05-15-2020, 10:52 PM	#6
70STOVEBOLT Senior Member Join Date: Jun 2005 Location: Winona Lake, IN Posts: 6,414	Re: 250 Exhaust/Intake Manifold hardware I think I have a complete set of factory hardware I will look on Monday and get back to you. __________________ 70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Sliding Rear Window Power Windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear

05-16-2020, 01:15 PM	#7
RichardJ Registered User Join Date: Apr 2010 Location: So Cal Posts: 1,466	Re: 250 Exhaust/Intake Manifold hardware http://67-72chevytrucks.com/vboard/s...ud#post8077723 Scottcoda, when I take a close,expanded look at your picture it looks like you still have the short, locator studs in the end holes of your head. Those should usually be replaced with longer threaded studs when using tube headers. As in the link above, the heads originally had threaded studs in the 3rd hole in from each end of the head. __________________ '67 GMC 2500, 292, 4spd, AC

05-19-2020, 03:57 PM	#8
70STOVEBOLT Senior Member Join Date: Jun 2005 Location: Winona Lake, IN Posts: 6,414	Re: 250 Exhaust/Intake Manifold hardware I do not have a full set of hardware. __________________ 70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Sliding Rear Window Power Windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear



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