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#1 |
Post Whore
![]() Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,684
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Ideas on my exhaust placement
When I get the 454 in, I am going to rework my exhaust. I've got Dynomax headers and 2 1/2" Dynomax Ultra Flow mufflers. I will use 2 1/2" exhuast pipes with an h-pipe.
I don't like the present placement of the exhaust tip, asthestically and because it is not very protected. I'd like some suggestions on different placement. This truck is not a daily driver and I don't mind if it is loud. I don't want it like it is now, cause sooner or later I'm gonna back or drive over something and bend it. Here's how the present setup exits the truck. ![]() ![]()
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 Last edited by Yukon Jack; 10-03-2002 at 11:17 AM. |
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#2 |
Half a bubble off!
Join Date: Jun 2000
Location: Winfield, Ks, USA
Posts: 5,588
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I would say go stright back from the axle bend along the side of the framework for your trailer hitch with a little downturn at the end to point that exhaust out from under the end of the bed. Speaking of beds, don't forget the rhino woman, he-hee!
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Just call me LB. ![]() '71 Cheyenne, 402BB, hauls blondes, brunettes, or redheads. |
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#3 |
Registered User
Join Date: Mar 2002
Location: Bondurant, IA but in Worcester, MA for school
Posts: 767
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Open headers baby!!!
![]() HotRod
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1970 Chevy C-20 350 V-8 Turbo 350 w/ shift kit Dana 60 w/ 4.10 gears AND Powr-Loc POSI New Additions: Summit Headers 135amp alternator Proform HEI Edelbrock 1406 600cfm carb Sunpro Tach Powr-Loc POSI Edelbrock Performer RPM Intake MSD 6A Ignition Box AIM: HotRod929 Visit My Site: http://1970chevy.netfirms.com/ |
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#4 |
English Chevy Owner
Join Date: May 2002
Location: Shropshire, UK/ Lot, France
Posts: 1,848
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Can't see the back properly but how about keeping them up real high and taking them out through a cut-out in the rear plate of the bed, maybe together in the middle a bit like the Lotus Elise sports car. They'll be protected by the tow hitch and tucked up out of the way.
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Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission |
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#5 |
Registered User
Join Date: May 2000
Location: Petrolia,Ontario,Canada but working in Port Huron,Mi.
Posts: 1,771
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If you don't care how loud it is do a couple turn downs right after the mufflers.Or run it out just in front of the rear wheels.With that AWSOME looking flatbed on there I doubt you'd have a problem with fumes.
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71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE |
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#6 |
Post Whore
![]() Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,684
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Here's a pic of the hitch.
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 |
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#7 |
Registered User
Join Date: May 2000
Location: Petrolia,Ontario,Canada but working in Port Huron,Mi.
Posts: 1,771
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I've also seen the pipes run straight out the back,along each side of the hitch.
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71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE |
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#8 |
Registered User
Join Date: Jul 2002
Location: St. James, MO
Posts: 1,239
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Mine currently turn out like yours but ahead of the rear wheels; I haven't hit anything with them yet, and mine isn't lifted any.
Of course, I plan to switch to stacks; do that, and you'll need to worry about low-hanging wires, but not trail obstacles ![]()
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'69 Longstep K-10: 327/SM465/T-221/Closed Knuckle Dana44/12-bolt. |
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#9 |
Senior Member
Join Date: Aug 2002
Location: Valley Center KS
Posts: 3,525
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I'd go with in front of the rear wheels. That's the way mine is, but mine is strictly street driven.
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#10 |
English Chevy Owner
Join Date: May 2002
Location: Shropshire, UK/ Lot, France
Posts: 1,848
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Having seen the back I'd definitely be different and take a tank cutter to that chequer plate either side of the license plate and cut two round holes, maybe sleeve them with a short length of pipe slightly larger than your exhausts and run them through the plate. They'll be well protected and nice and high out of the way when in water or backing up off road.
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Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission |
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#11 |
Registered User
Join Date: May 2000
Location: Petrolia,Ontario,Canada but working in Port Huron,Mi.
Posts: 1,771
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That's a cool idea!
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71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE |
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#12 |
Registered User
Join Date: Aug 2002
Location: Oshawa, ON, CAN
Posts: 40
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LippyP's idea is cool.
A couple of chrome tips sticking through that checker plate would look awsome! MY $0.02. (CDN currency so basically worthless in USA) Trevor ![]()
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Newby 69 GMC Also own 88 4X4 Toyota P/U 01 Toyota RAV 4 |
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#13 |
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,721
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I'd think about turn downs PAST the rear axle. This is not ideal, but will look OK. Actually, I like where you have it the way you have it as the best spot, but aesthetically it is lacking with your flat bed... NEVER point exhaust straight out the back in a 4x4 (any truck IMO) when you get it in the mud and you have to slam it forward and backwards to get out, you pack the exhaust full of mud and water, killing the motor. Snow applies here as well. "Real 4x4 don't run chrome baloneys" Also, straight out the back will make a sooty mess of your trailer or your load if you have a flat bed. Do you have enough room to run between the shackle reversal and the trailer hitch?
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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#14 |
Registered User
Join Date: Aug 2002
Location: Oshawa, ON, CAN
Posts: 40
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Mike C I agree with what you said if he was going to put it down by the trailer hitch but up in the bed? How deep of mud are you going through?
As for the tips, I know I didn't explain but I meant a couple of down swept tips to help with the carbon thing. And I think that chome looks good on 4X4s. (I know cheap stuff rusts) Trevor ![]()
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Newby 69 GMC Also own 88 4X4 Toyota P/U 01 Toyota RAV 4 |
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#15 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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It would sound good with a set of stacks running up behind the cab,& you wouldnt have to worry about the mud! I have plans to run my ex like that on the old flatbed. I dont remember if your bed has a hoist or not, but I plan to cut 2 holes in the floor of theflatbed, & run the stacks up & hang em on the headache rack. I wont be doing any chrome,just 3" aluminized pipe with rain caps. good luck......crazy longhorn
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#16 |
Just Another Crazy Canuck
Join Date: Dec 2000
Location: Richmond,British Columbia Canada
Posts: 1,228
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fenderwell headers and stacks!!!!!!!!!!!!!
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1985 ![]() ![]() ![]() soon to be installed: 14bDETROIT,Edelbrock Performer cam,intake and valve springs,Comp roller tips,MSD HEI |
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#17 |
Post Whore
![]() Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,684
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I had a buddy with stacks on his mid 90's 1 ton flatbed and man it gave me such a headache and that was with a stock engine. Stacks are out
![]() Mike C - I don't think there is enough clearance to go between the shackle flip and the hitch but I will take a look. I'm leaning towards going past the rear axle, tucked up high with a slight turn down.
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 |
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#18 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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I helped install a set of stacks on a Ferd when I was down at the muffler shop,that 351 W sounded awsome........but i didnt ride in it. That might be a thing to check out before I do the stacks on mine! They sure sounded good goin down the road,but who needes a headache?
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