dual exhaust - The 1947 - Present Chevrolet & GMC Truck Message Board Network

andyr354 · 05-05-2004, 10:52 AM

Search didn't turn up anything for some reason... Haven't been on the board for a while.

I wan't to improve the exhaust on my 70 and get it all the way out under the back, right now it dumps in front of the rear wheels and I am tired of listening to it!

How the heck to duals make it to the rear of these trucks, looks like tight clearances. Pics of the routing would be awesome if anybody has them.

Would like to stay with 2 1/4 pipes at least like I have now.

shuttermutt · 05-05-2004, 11:09 AM

FWIW, I put a set of duals on mine and had the exhaust dump before the rear wheels at 45 degrees. I used a pair of relatively inexpensive Flowtech Afterburners and the noise level is quite tolerable. You have to speak up just a little at a drive-thru, but you can carry on a normal conversation in the cab when the windows are up.

andyr354 · 05-05-2004, 11:23 AM

Quote:

Originally Posted by shuttermutt

FWIW, I put a set of duals on mine and had the exhaust dump before the rear wheels at 45 degrees. I used a pair of relatively inexpensive Flowtech Afterburners and the noise level is quite tolerable. You have to speak up just a little at a drive-thru, but you can carry on a normal conversation in the cab when the windows are up.

I have the same mufflers, those things are tough. I use them on my offroading jeep and the rocks don't hurtem.

My exits are pointing straight out about 1.5' in front of the wheels, guess I could grab some 45s and try pointing them back more for a cheap attempt to help it.

How is the quality of the JCW system? Is it decent thickness tube? It is aluminized well? How crushed are the bends?

**JIMs70GMC** · 05-05-2004, 11:12 AM

I just installed a JC whitney dual exhaust exits behind the rear wheels. Cleared shocks and transfer case. They have them for 2wd and 4wd.

**JIMs70GMC** · 05-05-2004, 12:00 PM

Not crushed at all, very smooth. 2 1/4" pipe aluminized. Made by a company called Heart Throbe in the USA.

70ChevyLongbed · 05-05-2004, 12:55 PM

Mine run out the back, and I want to switch to dumping in front of the rear tire. Wanna switch?!?

I'll get a pic tonight.

70ChevyLongbed · 05-07-2004, 11:06 AM

Quote:

Originally Posted by 70ChevyLongbed

I'll get a pic tonight.

Didn't get the pic yet, still interested?

andyr354 · 05-07-2004, 11:33 AM

If it isn't to much trouble. If it is a hassle don't worry about it. I haven't been able to look one over that has it and was wondering how it was routed is all.

Andy

Longhorn Man · 05-06-2004, 04:24 PM

There is a nice exhaust set up in the LMC catalog, quite a few members have given them a thumbs up on there pipes...the rest of there parts are pretty much over priced though.

Alex Hayley · 05-07-2004, 10:28 PM

Are there any 2.5 inch prefabbed dual exhaust system?

glock35ipsc · 05-07-2004, 10:35 PM

Here is my 68 C10 LWB with the LMC kit. It took me about 4 hours to install including fully welding every joint. I had my doubt's about the turbo mufflers that came with the kit, but I am more than pleased with the sound!

70ChevyLongbed · 05-07-2004, 10:41 PM

Glock,

Your's is way nicer than mine! I'll be changing mine this summer.

andyr354 · 05-10-2004, 12:48 PM

That LMC kit does look fairly nice. Will have to call and see what it is going for. From the looks of it it has an H pipe to? Is it made for manifolds or headers? I have some good mufflers that are center/offset style that I was hoping to use.

71-longbed · 05-10-2004, 01:10 PM

summit sells an h pipe you can hook onto the lmc kit ... anyone have abetter suggestion ...

glock35ipsc... can you take some other pics of the pipes??? im planning on getting that kit .. would like a couiple more pics to referance by

thanks

Hotrod70C10 · 05-10-2004, 03:13 PM

glock35ipsc, I have a question.... how is the clearence up front? I've got a 4/6 drop and I need something that's going to be very close to the frame rails.
If you could, would you get a shot from the side of your truck? thanks

johnnyp · 05-11-2004, 01:35 PM

glock35ipsc - If you don't mind telling, how much does LMC get for the kit? Just curious to know how the cost compares to what I paid to have a local muffler shop install mine. The shop put on a set of custom bent, aluminized duals with flow masters for $150. I thought it was a good price, but mainly I just didn't fell like doing the job myself.

mcmlxix · 05-11-2004, 01:54 PM

I have a 71 SWB Step with the ECE 4/6 drop and there isnt much room... I wanted to cut some holes and run the pipes through the center crossmember...
Glock - side pics would be great if you get a chance

andyr354 · 05-11-2004, 01:56 PM

in my newest LMC it is $179 with turbo mufflers. They don't show it for pipes only which is kind of a bummer.

70ChevyLongbed · 05-07-2004, 09:58 PM

Night-time caught up to me but I think you can see how mine are.

05-05-2004, 10:52 AM	#1
andyr354 Registered User Join Date: Mar 2003 Location: Mahaska, KS Posts: 82	dual exhaust Search didn't turn up anything for some reason... Haven't been on the board for a while. I wan't to improve the exhaust on my 70 and get it all the way out under the back, right now it dumps in front of the rear wheels and I am tired of listening to it! How the heck to duals make it to the rear of these trucks, looks like tight clearances. Pics of the routing would be awesome if anybody has them. Would like to stay with 2 1/4 pipes at least like I have now. __________________ 1970 C10: 2WD, LWB, 350, 350 auto, Headers, Duals, Edelbrock 1406 with 2101 intake, and optional rust.

05-05-2004, 11:09 AM	#2
shuttermutt Don't say "Oops!", Doctor Join Date: Nov 2003 Location: Houston, TX Posts: 677	FWIW, I put a set of duals on mine and had the exhaust dump before the rear wheels at 45 degrees. I used a pair of relatively inexpensive Flowtech Afterburners and the noise level is quite tolerable. You have to speak up just a little at a drive-thru, but you can carry on a normal conversation in the cab when the windows are up. __________________ 'Mutt 1968 CST LWB: R.I.P. 1967 Chevelle: TPI 454 beast 1967 C10 SWB: Claimed when Bumpster didn't put it on his list

05-05-2004, 11:12 AM	#4
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	I just installed a JC whitney dual exhaust exits behind the rear wheels. Cleared shocks and transfer case. They have them for 2wd and 4wd. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

05-05-2004, 12:00 PM	#5
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Not crushed at all, very smooth. 2 1/4" pipe aluminized. Made by a company called Heart Throbe in the USA. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

05-05-2004, 12:55 PM	#6
70ChevyLongbed Howzit?!? Join Date: Jan 2003 Location: Maryville, TN Posts: 1,266	Mine run out the back, and I want to switch to dumping in front of the rear tire. Wanna switch?!? I'll get a pic tonight. __________________ Jason Hawaiian-J 70 Longbed, 307, Edelbrock Carb 1404, Edelbrock Intake 2101, Dual Roller Timing chain and gears, 214/214 cam, Comp Roller Rockers, dual Flowmasters. 1999 Chevy Tahoe 2004 Mini Cooper S 71 BMW 2002 - Sold

05-07-2004, 11:33 AM	#8
andyr354 Registered User Join Date: Mar 2003 Location: Mahaska, KS Posts: 82	If it isn't to much trouble. If it is a hassle don't worry about it. I haven't been able to look one over that has it and was wondering how it was routed is all. Andy __________________ 1970 C10: 2WD, LWB, 350, 350 auto, Headers, Duals, Edelbrock 1406 with 2101 intake, and optional rust.

05-06-2004, 04:24 PM	#9
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	There is a nice exhaust set up in the LMC catalog, quite a few members have given them a thumbs up on there pipes...the rest of there parts are pretty much over priced though.

05-07-2004, 10:28 PM	#10
Alex Hayley Registered User Join Date: Jul 2000 Location: NC Posts: 987	Are there any 2.5 inch prefabbed dual exhaust system?

05-07-2004, 10:35 PM	#11
glock35ipsc Next project: 1970 K10 Join Date: Feb 2004 Location: Fort Collins, Colo 80524 Posts: 6,685	Here is my 68 C10 LWB with the LMC kit. It took me about 4 hours to install including fully welding every joint. I had my doubt's about the turbo mufflers that came with the kit, but I am more than pleased with the sound! __________________ *Bob* 1970 Chevy K10 LWB "Goldie" 350/TH350 *next project!!* 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE

05-07-2004, 10:41 PM	#12
70ChevyLongbed Howzit?!? Join Date: Jan 2003 Location: Maryville, TN Posts: 1,266	Glock, Your's is way nicer than mine! I'll be changing mine this summer. __________________ Jason Hawaiian-J 70 Longbed, 307, Edelbrock Carb 1404, Edelbrock Intake 2101, Dual Roller Timing chain and gears, 214/214 cam, Comp Roller Rockers, dual Flowmasters. 1999 Chevy Tahoe 2004 Mini Cooper S 71 BMW 2002 - Sold

05-10-2004, 12:48 PM	#13
andyr354 Registered User Join Date: Mar 2003 Location: Mahaska, KS Posts: 82	That LMC kit does look fairly nice. Will have to call and see what it is going for. From the looks of it it has an H pipe to? Is it made for manifolds or headers? I have some good mufflers that are center/offset style that I was hoping to use. __________________ 1970 C10: 2WD, LWB, 350, 350 auto, Headers, Duals, Edelbrock 1406 with 2101 intake, and optional rust.

05-10-2004, 01:10 PM	#14
71-longbed Its Magically Delicious Join Date: Jan 2003 Location: oregon Posts: 2,398	summit sells an h pipe you can hook onto the lmc kit ... anyone have abetter suggestion ... glock35ipsc... can you take some other pics of the pipes??? im planning on getting that kit .. would like a couiple more pics to referance by thanks __________________ 71 C10 LWB 350sbc -TH350 12 bolt 3.42 Posi Of all my favorite things to do, The utmost is to have a brew. My love grows for my foamy friend, with each thirst-quenching elbow bend. Beer so frosty, smooth, and cold it's paradise pure liquid gold. Yes beer means many things to me that's all for now cus I gotta pee.

05-10-2004, 03:13 PM	#15
Hotrod70C10 Low & Slow Join Date: Dec 2002 Location: Oklahoma Posts: 1,047	glock35ipsc, I have a question.... how is the clearence up front? I've got a 4/6 drop and I need something that's going to be very close to the frame rails. If you could, would you get a shot from the side of your truck? thanks __________________ 70' C-10 LWB Fleetside 4.5/6 drop

05-11-2004, 01:35 PM	#16
johnnyp Keepin' It Stock Join Date: Aug 2001 Location: Grand Island, Nebraska, USA Posts: 554	glock35ipsc - If you don't mind telling, how much does LMC get for the kit? Just curious to know how the cost compares to what I paid to have a local muffler shop install mine. The shop put on a set of custom bent, aluminized duals with flow masters for $150. I thought it was a good price, but mainly I just didn't fell like doing the job myself. __________________ 72 Sierra Grande - Maych Forget about "do it right the first time". Do it wrong the first time to learn how, then do it right the second time.

05-11-2004, 01:54 PM	#17
mcmlxix Collector of Projects Join Date: Apr 2003 Location: Las Vegas Posts: 3,106	I have a 71 SWB Step with the ECE 4/6 drop and there isnt much room... I wanted to cut some holes and run the pipes through the center crossmember... Glock - side pics would be great if you get a chance __________________ Rich 1972 K5 Blazer CST Click HERE D60 BIG BRAKE UPGRADE Click HERE



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05-11-2004, 01:56 PM	#18
andyr354 Registered User Join Date: Mar 2003 Location: Mahaska, KS Posts: 82	in my newest LMC it is $179 with turbo mufflers. They don't show it for pipes only which is kind of a bummer. __________________ 1970 C10: 2WD, LWB, 350, 350 auto, Headers, Duals, Edelbrock 1406 with 2101 intake, and optional rust.

05-07-2004, 09:58 PM	#19
70ChevyLongbed Howzit?!? Join Date: Jan 2003 Location: Maryville, TN Posts: 1,266	Night-time caught up to me but I think you can see how mine are. __________________ Jason Hawaiian-J 70 Longbed, 307, Edelbrock Carb 1404, Edelbrock Intake 2101, Dual Roller Timing chain and gears, 214/214 cam, Comp Roller Rockers, dual Flowmasters. 1999 Chevy Tahoe 2004 Mini Cooper S 71 BMW 2002 - Sold Last edited by 70ChevyLongbed; 07-06-2004 at 03:42 PM.

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