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04-17-2012, 11:53 PM
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#1 |
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18 Till I Die
Join Date: Mar 2005
Location: Alberta, Canada
Posts: 1,522
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Exhaust Manifolds?
What newer exhaust manifolds can i look for at the wreckers that I can use on my 87 that dont have the Air holes in the top...will 88-92 work? I want something that has the same location for the exhaust donut so I dont have to get new exhaust. Mine are welded up and Im looking for something cleaner.
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2011 GMC Acadia 1969 GMC BBC LS7 2007 GMC Crew Duramax 1987 Camaro Iroc 350 Tuned Port Injection 42000Km 1987 Chevrolet Silverado 350 TBI 1987 Chevrolet Silverado 350 TBI(yes 2) Take me drunk, I'm too home... 
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04-18-2012, 12:08 AM
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#2 |
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Re: Exhaust Manifolds?
Look for an old Chevell or F body type car. The manifolds will hug the block better and fit in the frame rails. 88+ fit too. I'm sure how they fit in our trucks though. The 88+ style trucks had an overall wider frame rail to tuck the gas tanks.
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04-18-2012, 12:45 AM
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#3 |
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Registered User
Join Date: Dec 2006
Location: SLC, UT
Posts: 706
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Re: Exhaust Manifolds?
'88-'92 may have AIR tube inlets. The '88 and the '92 half tons in our fleet do.
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04-18-2012, 07:37 AM
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#4 |
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78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: Exhaust Manifolds?
my 87 from here and 88 from Texas has air tubes both 4X4s
do the older ones not fit? I just ground out the insides of mine
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 Last edited by motornut; 04-18-2012 at 07:52 AM. |
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04-18-2012, 11:27 AM
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#5 |
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^^who I am^^ what I say>
Join Date: Jun 2009
Location: Murchison, Tx
Posts: 992
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Re: Exhaust Manifolds?
88-98 will fit as long as they're not off a vortech 350. I had them on my old k5. Im actually about to put another set on my 2wd swb, Someone gave me 3 sets for free so im gonna use them!
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70 chevy LWB 350/TH350 Barn find (AKA the 70) http://www.67-72chevytrucks.com/vboa...d.php?t=406364 East Tx Squares |
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04-18-2012, 07:07 PM
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#6 |
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Registered User
Join Date: Dec 2010
Location: Visalia, Ca
Posts: 707
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Re: Exhaust Manifolds?
that is good to know I have a set without smog tubes
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<Brandon> 1974 Chevrolet K5 Blazer 350sbc/SM465/NP205, dana44 front, corp 14bolt rear with 4.10s and a powertrax locker, custom rear bumper 400sbc in the works.  1981 GMC C1500 stepside 250i6, 3spd, 12bolt with 3.08s 2.5/4drop on 15x10 with 275/50r15 81 GMC C3500 cab-chassis dually with utility bed 350sbc, Sm465, 14bolt with 4.10s nv4500 getting ready to go in 1979 Chevrolet K5 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434096 1976 Chevrolet C10 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434195 |
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04-18-2012, 07:09 PM
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#7 |
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^^who I am^^ what I say>
Join Date: Jun 2009
Location: Murchison, Tx
Posts: 992
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Re: Exhaust Manifolds?
Keep in mind you will have to have your exhaust redone, I guess that's a given though.
Posted via Mobile Device
__________________
70 chevy LWB 350/TH350 Barn find (AKA the 70) http://www.67-72chevytrucks.com/vboa...d.php?t=406364 East Tx Squares |
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04-18-2012, 07:59 PM
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#8 |
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18 Till I Die
Join Date: Mar 2005
Location: Alberta, Canada
Posts: 1,522
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Re: Exhaust Manifolds?
Yea Im looking for a direct swap...
__________________
2011 GMC Acadia 1969 GMC BBC LS7 2007 GMC Crew Duramax 1987 Camaro Iroc 350 Tuned Port Injection 42000Km 1987 Chevrolet Silverado 350 TBI 1987 Chevrolet Silverado 350 TBI(yes 2) Take me drunk, I'm too home...
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