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#1 |
Registered User
Join Date: Jan 2007
Location: Illinois
Posts: 351
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Help with Exhaust Routing!
With the search engine down, i need some help with my exhaust plan. I have my frame C-Notched with trailing arms and bags. I'm trying to decide weather to cut 4 inch openings on the center crossmember or run below the center. What are the pros and cons of either. I'll basically have the typical front and rear bagged. thanks
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#2 |
WTB this ad
Join Date: Sep 2004
Location: Lafayette Georgia
Posts: 5,074
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Re: Help with Exhaust Routing!
Cut some holes in it bro! As long as you're not running long tube headers, you'll be able to have all your exhaust up higher then the bottom of the frame that way.
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#3 |
Wide n'Low
![]() Join Date: Jan 2007
Location: La Center, WA
Posts: 1,511
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Re: Help with Exhaust Routing!
I agree, and If I had not bought the ECE drop Cross member I would be doing the same thing. After airing mine out, the exhaust would surely hit the ground before anything else. By going through the cross member, the lowest point is the bottom of my fuel tank and the big ass front cross member.
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Trippin Hazard.. 67 swb, Gold Member.. 68 Suburban Air Force Retired |
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#4 |
Registered User
Join Date: Jan 2008
Location: Oakdale, Ca
Posts: 655
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Re: Help with Exhaust Routing!
I agree, cut holes or contact ECE for a drop crossmember. They also have a nice transmission crossmember that allows you to run the exhaust above it and between the frame.
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1970 2wd short/fleet 350/350 Project "iced green dream" http://67-72chevytrucks.com/vboard/s...d.php?t=272702 2006 Toyota Tacoma double cab 4x4 |
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#5 |
That's right, it's Copper!!
Join Date: May 2007
Location: Bakersfield, Central California
Posts: 558
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Re: Help with Exhaust Routing!
I have both the trailing arm crossmember and the trans crossmember from Early Classic. They both work well and get the exhaust up and out of the way.
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#6 |
Registered User
Join Date: Mar 2002
Location: Forney TX
Posts: 4,512
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Re: Help with Exhaust Routing!
Cut the holes! I plan on cutting holes in crossmember and welding in 1/4" 4.5" inserts to strengthen the crossmember again then doing another cutout in the side of the frame right behind the front bed mnt to route exhaust out side the frameto the front of the tire. Heres an old pic
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Troy 1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884 Big Red Dog build http://67-72chevytrucks.com/vboard/s...d.php?t=572274 |
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#7 |
GM ONLY BABY!!!
Join Date: Oct 2003
Location: Fort Wayne, IN.
Posts: 1,998
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Re: Help with Exhaust Routing!
Cut holes in it so that you can route your exhaust thru it. That's what I plan on doing too. Too bad I just put a new 2 1/2" Magnaflow stainless system on it last year.
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2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride ![]() ![]() http://www.cardomain.com/ride/707879...mc-c-k-pick-up |
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#8 |
Active Member
Join Date: Dec 2002
Location: Atwater, CA
Posts: 259
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Re: Help with Exhaust Routing!
Through the traling arm crossmember is definately the way to go.
Can you get the exhaust over the stock tranny crossmember though?? That is what I was hoping to do.
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Kevin 72 Chevelle 67 C10...454/TH400 Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=193961 |
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#9 |
Registered User
Join Date: Mar 2002
Location: Forney TX
Posts: 4,512
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Re: Help with Exhaust Routing!
Mine is but its REAL close and if I hit a big enough bump it will clang so I plan on notching it too and making a bridge so exhaust will run below two parts of the trans x member. I don't have the top ears on the trans crossmember that bolt to the top of the frame.
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Troy 1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884 Big Red Dog build http://67-72chevytrucks.com/vboard/s...d.php?t=572274 |
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#10 |
Active Member
Join Date: Dec 2002
Location: Atwater, CA
Posts: 259
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Re: Help with Exhaust Routing!
Got any pics? I don't have all my stuff in yet, and the cab and bed and all is off of it, but other than where to put the mufflers, it looks like there is plenty of room. What size exhaust do you have on it? I was going to try and squeeze 3" in there, and try and get it over the rear axle all the way to the rear bumper. I want to run a tank between the rails and all that back there had me more worried than the tranny or trailing arm crossmembers.
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Kevin 72 Chevelle 67 C10...454/TH400 Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=193961 |
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#11 |
Active Member
Join Date: Dec 2002
Location: Atwater, CA
Posts: 259
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Re: Help with Exhaust Routing!
I was hoping to run more between the top ears of the tranny crossmember and the tranny itself...
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Kevin 72 Chevelle 67 C10...454/TH400 Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=193961 |
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#12 |
Registered User
Join Date: Mar 2002
Location: Forney TX
Posts: 4,512
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Re: Help with Exhaust Routing!
You should be able too I did my exhaust my self so straight was the key and with some bending you'll be fine,I have like 6" or so from tailshaft to pipe on both sides.
__________________
Troy 1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884 Big Red Dog build http://67-72chevytrucks.com/vboard/s...d.php?t=572274 |
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#13 |
Senior Member
Join Date: Jan 2005
Location: SUNNY WARM BIKE RIDING COTTONWOOD ARIZONA
Posts: 2,097
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Re: Help with Exhaust Routing!
cut the holes and it tucks up all above the frame....... wouldnt do it any other way if i do it again....... or get the ECE crossmember they mention.......
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