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08-01-2014, 07:09 PM
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#1 |
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Registered User
Join Date: Aug 2005
Location: Louisiana
Posts: 711
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Exhaust manifolds
Does anyone know if there are problems using manifolds from a 67-72 truck on a 73-86?
Here is what I had in mind: http://www.rockauto.com/catalog/more...213&cc=1410073 Curious about the exit or any interference issues |
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08-05-2014, 07:25 PM
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#2 |
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Registered User
Join Date: Jun 2011
Location: Spokane, WA
Posts: 48
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Re: Exhaust manifolds
I'm running ram horns on my 79 C10. Driver's side dumps straight down and passenger side angles back. Pretty tight around the stock starter, but I haven't had any heat-soak issues (yet). Painted them with POR 15 manifold paint and it's held up pretty well.
One other thing to consider is you will probably have to have new down-pipes fabricated for you by a good muffler shop.
__________________
79 C10 Cheyenne SWB Daily Driver |
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08-05-2014, 09:25 PM
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#3 |
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Registered User
Join Date: Dec 2012
Location: Temple City
Posts: 3,628
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Re: Exhaust manifolds
I got 2.5 inch ram horns from a corvette on my k20. A little tight but work great. I added band clamps to make exhaust removal easier. For service and such.
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08-06-2014, 05:52 AM
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#4 |
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Registered User
 
Join Date: Jan 2012
Location: Arizona Bay
Posts: 145
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Re: Exhaust manifolds
I'm running these exact manifolds on my '75 GMC without issue.
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08-06-2014, 06:55 AM
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#5 |
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Registered User
Join Date: Aug 2005
Location: Louisiana
Posts: 711
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Re: Exhaust manifolds
Thanks fellas!
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08-06-2014, 03:09 PM
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#6 | |
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Registered User
Join Date: Oct 2010
Location: Town of Summit, WI
Posts: 322
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Re: Exhaust manifolds
Quote:
Also remember you will need longer center bolts(4 of them) as the horns are thicker in the middle.
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2017 Silverado LTZ 6.2 1984 Scottsdale K10 - 468 700r 4x4 lwb 1978 GMC Sierra Grande K15 350 Soond to be 406 th350 4x4 swb 1968 GMC 20 305 V6 good ole wood hauler.  Good Fences make good neighbors |
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08-06-2014, 03:16 PM
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#7 |
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Registered User
Join Date: Jan 2010
Location: northern arizona
Posts: 259
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Re: Exhaust manifolds
Also, put some anti-seize compound on the bolts when you install them.
Will make it MUCH easier someday in the future if they need to come off.
__________________
"Off the grid and on the seven day weekend plan" "One person cannot know everything, but between all of us, there isn't much we don't know." |
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