Ideas on my exhaust placement - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Yukon Jack** · 10-03-2002, 11:14 AM

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.

barn9 · 10-03-2002, 11:30 AM

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!

HotRod929 · 10-03-2002, 11:52 AM

Open headers baby!!!

HotRod

Lippyp · 10-03-2002, 12:18 PM

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.

BobbyK · 10-03-2002, 12:25 PM

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.

**Yukon Jack** · 10-03-2002, 12:31 PM

Here's a pic of the hitch.

BobbyK · 10-03-2002, 01:43 PM

I've also seen the pipes run straight out the back,along each side of the hitch.

palallin · 10-03-2002, 02:25 PM

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

Ackattack · 10-03-2002, 08:12 PM

I'd go with in front of the rear wheels. That's the way mine is, but mine is strictly street driven.

Lippyp · 10-04-2002, 05:43 AM

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.

BobbyK · 10-04-2002, 06:23 AM

That's a cool idea!

Newby 69 GMC · 10-04-2002, 08:20 AM

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

Mike C · 10-04-2002, 08:34 AM

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?

Newby 69 GMC · 10-04-2002, 08:57 AM

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

crazy longhorn · 10-04-2002, 09:19 AM

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

Burlinator · 10-04-2002, 01:33 PM

fenderwell headers and stacks!!!!!!!!!!!!!

**Yukon Jack** · 10-04-2002, 02:16 PM

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.

crazy longhorn · 10-04-2002, 07:25 PM

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?

10-03-2002, 11:14 AM	#1
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,683	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. __________________ 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.

10-03-2002, 11:30 AM	#2
barn9 Half a bubble off! Join Date: Jun 2000 Location: Winfield, Ks, USA Posts: 5,588	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! __________________ Just call me LB. '71 Cheyenne, 402BB, hauls blondes, brunettes, or redheads.

10-03-2002, 11:52 AM	#3
HotRod929 Registered User Join Date: Mar 2002 Location: Bondurant, IA but in Worcester, MA for school Posts: 767	Open headers baby!!! HotRod __________________ 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/

10-03-2002, 12:18 PM	#4
Lippyp English Chevy Owner Join Date: May 2002 Location: Shropshire, UK/ Lot, France Posts: 1,848	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. __________________ 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

10-03-2002, 12:25 PM	#5
BobbyK Registered User Join Date: May 2000 Location: Petrolia,Ontario,Canada but working in Port Huron,Mi. Posts: 1,771	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. __________________ 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

10-03-2002, 12:31 PM	#6
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,683	Here's a pic of the hitch. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

10-03-2002, 01:43 PM	#7
BobbyK Registered User Join Date: May 2000 Location: Petrolia,Ontario,Canada but working in Port Huron,Mi. Posts: 1,771	I've also seen the pipes run straight out the back,along each side of the hitch. __________________ 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

10-03-2002, 02:25 PM	#8
palallin Registered User Join Date: Jul 2002 Location: St. James, MO Posts: 1,239	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 __________________ '69 Longstep K-10: 327/SM465/T-221/Closed Knuckle Dana44/12-bolt.

10-03-2002, 08:12 PM	#9
Ackattack Senior Member Join Date: Aug 2002 Location: Valley Center KS Posts: 3,525	I'd go with in front of the rear wheels. That's the way mine is, but mine is strictly street driven. __________________ Project Bruiser: 68 Pro-Touring C-10 5.3L / 4L60E Project Ironhide: 97 GMC Crew Cab 4x4 Cummins SOLD: '69 GMC 1/2T SWB TBI'd: Project No Buck Assembly Manual Index Sign up Thread!!! Factory Service Manual Index

10-04-2002, 05:43 AM	#10
Lippyp English Chevy Owner Join Date: May 2002 Location: Shropshire, UK/ Lot, France Posts: 1,848	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. __________________ 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

10-04-2002, 06:23 AM	#11
BobbyK Registered User Join Date: May 2000 Location: Petrolia,Ontario,Canada but working in Port Huron,Mi. Posts: 1,771	That's a cool idea! __________________ 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

10-04-2002, 08:20 AM	#12
Newby 69 GMC Registered User Join Date: Aug 2002 Location: Oshawa, ON, CAN Posts: 40	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 __________________ Newby 69 GMC Also own 88 4X4 Toyota P/U 01 Toyota RAV 4

10-04-2002, 08:34 AM	#13
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,715	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? __________________ 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

10-04-2002, 08:57 AM	#14
Newby 69 GMC Registered User Join Date: Aug 2002 Location: Oshawa, ON, CAN Posts: 40	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 __________________ Newby 69 GMC Also own 88 4X4 Toyota P/U 01 Toyota RAV 4

10-04-2002, 09:19 AM	#15
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	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



Register or Log In To remove these advertisements.

10-04-2002, 01:33 PM	#16
Burlinator Just Another Crazy Canuck Join Date: Dec 2000 Location: Richmond,British Columbia Canada Posts: 1,228	fenderwell headers and stacks!!!!!!!!!!!!! __________________ 1985 454/465/205, 38.5x11-16BOGGERS soon to be installed: 14bDETROIT,Edelbrock Performer cam,intake and valve springs,Comp roller tips,MSD HEI

10-04-2002, 02:16 PM	#17
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,683	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. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

10-04-2002, 07:25 PM	#18
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	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?

Register or Log In To remove these advertisements.