How do I make the truck loud??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70' GMC · 12-31-2007, 06:07 PM

Every redneck at my school has really loud pipes on their trucks. I was wondering should I get brand new pipes and then get glass packs? The guys at my school have them very loud z71's, I was wanting to make my truck very loud and at decent price.

89 crew · 12-31-2007, 06:09 PM

put a dump coming off the header pipe. make it with a cable pull so you can open it when you want and leave it closed when you don't.

chevy72blu · 12-31-2007, 06:14 PM

Flowtech makes some pretty decent manual cutouts that you weld in the exhaust system. You can bolt on or remove little blocker plates that allow the exhaust to exit right behind the muffler. Its quite a bit quieter than open headers, but still obnoxiously loud. I used to use a nut as a spacer with the plates which gave it a really throaty growl while keeping it a little quieter. Just a warning though, its pretty tough to keep them from leaking when they are corked.

I think I payed about 30 bucks each for mine

70' GMC · 12-31-2007, 06:18 PM

Quote:

Originally Posted by chevy72blu

Flowtech makes some pretty decent manual cutouts that you weld in the exhaust system. You can bolt on or remove little blocker plates that allow the exhaust to exit right behind the muffler. Its quite a bit quieter than open headers, but still obnoxiously loud. I used to use a nut as a spacer with the plates which gave it a really throaty growl while keeping it a little quieter. Just a warning though, its pretty tough to keep them from leaking when they are corked.

I think I payed about 30 bucks each for mine

just take everything off and leave the headers open no pipes???

jeffspower · 12-31-2007, 06:18 PM

headers & no mufflers, just resonator tips sounds good on the old '68. And it's not the tacky straight pipe on manifolds kinda loud either. But I have to watch out for cops & back off the pedal when I see one

heavy71chevy · 12-31-2007, 06:28 PM

ive got 3 inch headers with cherry bomb glasspack header mufflers and it has a real sweet idle and raw power when you open er on up

green724x4 · 12-31-2007, 06:32 PM

Proud to be a red neck right!
ya.
Got to run open headers not open manifolds tho.My buddy was running open manifolds on his 96 z71 and it sounded like he had crappy mufflers.
Got to go with some headers.
Heres an idea, get a build your own headers kit. But instead build some zoomie, tractor pull 'n headers. Just like a top fuel drag car. One pipe for each exhaust port. Then put them though your hood or fender so the flames from the unburnt fuel can shoot out. Ya. Anybody can be loud but you got to be diffrent.
I think the cops will like that!

streetstar · 12-31-2007, 07:05 PM

Here's a wild idea ---- why not put those douches' in their place and run your truck quieter than those dumb-A's, but faaaaaaaaster. Ultimate sleeper

A nitrous kit would do it ----- an extra 100-150 hp might have your truck runnin 14's or 15's -- enough to put most Z-71 pimp boys in their place

Quiet power is cool ---- loudness just equals fewer chicks for you.

**truckdude239** · 12-31-2007, 07:10 PM

manual dumps is the way i want to go with mine

**FRENCHBLUE72** · 12-31-2007, 07:12 PM

If its loud it better be fast!!!!!

67_C-30 · 12-31-2007, 07:17 PM

Yeah, cause everybody loves that ever-so-sweet sound of a late model Z71 with with straight pipes in OD doing about 45-50 MPH. They sound like an old 2 cyl John Deere w/o a muffler because they don't have enough back pressure and they are turning about 1600 RPM in OD. There's a significant difference in making it just loud and making it sound good while being loud.

*Shane* · 12-31-2007, 08:25 PM

you'll grow out of it ... maybe

72cheyennesuper20 · 12-31-2007, 08:36 PM

Go Flowmasters or Borla. Just say no to glasspacks or Cherry bombs, the 80's are over.

cstm68 · 12-31-2007, 08:57 PM

flowmaster super 40's or super 44's

Joes69c10 · 01-01-2008, 03:09 AM

hotrod 80 · 01-01-2008, 03:33 AM

Back in the day we would have the muffler shop install the glasspacks backwards .

**special-K** · 01-01-2008, 04:38 AM

In the`80s it was turbo mufflers.Glasspacks went out in the early`70s when sound started being enforced more.So...go with glasspacks.You want loud,right?SMITTY`S !!!!

**68350** · 01-01-2008, 07:25 AM

i'll admit it, I'm one of those z-71 straight pipe owners. loud on your gmc could be accomplished by something such as manifolds with straight pipes and 90 degree angles behind the tires(I have heard it, and it's LOUD!!). straight pipes under the bumper is loud, but not as loud. headers and straight pipes will be loud, too. Just remember, if you put a 45 or 90 degree angle or something at the tips, it WILL make it louder than just straight out the back. the 90 degree angle will be the loudest. if you want really, really loud, put an s-curve in the pipes. hope it helps

**special-K** · 01-01-2008, 08:30 AM

Have ya tryed baseball cards??

streetstar · 01-01-2008, 08:42 AM

Quote:

Originally Posted by special-K

Have ya tryed baseball cards??

tommys69/454 · 01-01-2008, 08:59 AM

Quote:

Originally Posted by FRENCHBLUE72

If its loud it better be fast!!!!!

SO FUNNY BUT TRUE!

**special-K** · 01-01-2008, 09:18 AM

Tune in next month for,"How do I quiet it down?I keep getting pulled over",thread.

mvfd70 · 01-01-2008, 09:31 AM

Quote:

Originally Posted by 67_C-30

Yeah, cause everybody loves that ever-so-sweet sound of a late model Z71 with with straight pipes in OD doing about 45-50 MPH. They sound like an old 2 cyl John Deere w/o a muffler because they don't have enough back pressure and they are turning about 1600 RPM in OD. There's a significant difference in making it just loud and making it sound good while being loud.

Oh how I SOOO agree with this. I get so tired of the yuppie country boy wanna be's makin their new truck "loud" just so they can be "redneck." I got passed by one of these idiots the other day (guess his gas is cheaper than mine) and he had apparently been running the crap out of his LOUD truck. It had the distinct sound of pipes comin off of cast iron and after he got around me I could smell unburnt fuel from his tail.

My advise, make sure it doesn't sound like you have bad mufflers. There is nothing wrong with a good deep throaty growl that is still not deafening.

Dingfodgy · 01-01-2008, 09:39 AM

Quote:

Originally Posted by streetstar

Here's a wild idea ---- why not put those douches' in their place and run your truck quieter than those dumb-A's, but faaaaaaaaster. Ultimate sleeper

A nitrous kit would do it ----- an extra 100-150 hp might have your truck runnin 14's or 15's -- enough to put most Z-71 pimp boys in their place

Quiet power is cool ---- loudness just equals fewer chicks for you.

I thoroughly enjoy pulling my beater-stocker up next to some hickoid jacka$$ in his lifted and loud Z71, F150, RAM..etc. at a stop light and tearing him a new one by the time we hit the next light......can you say "shrinkage!".

**70cst** · 01-01-2008, 10:27 AM

I find this thread interesting. The sound is referenced around a Z71 but I wonder how the Z71 sounds when compared to the true muscle car sounds on the 60's and 70's. I must must be getting old because when I think of hp sounds I think of muscles cars and not a Z71. Come to think of it I am getting old because I am thinking of ways to tone down my 402bb.

12-31-2007, 06:07 PM	#1
70' GMC HERE.......Somewhere Join Date: Oct 2006 Location: Birmingham AL Posts: 2,488	How do I make the truck loud??? Every redneck at my school has really loud pipes on their trucks. I was wondering should I get brand new pipes and then get glass packs? The guys at my school have them very loud z71's, I was wanting to make my truck very loud and at decent price. __________________ Current rides: 2013 Hyundai elantra gt DD 1995 camaro my first crush lmao Was: 1970 with a 350 4barrel and 288 horses Classics make it possible!

12-31-2007, 06:09 PM	#2
89 crew Registered User Join Date: Mar 2006 Location: Kansas Posts: 865	Re: How do I make the truck loud??? put a dump coming off the header pipe. make it with a cable pull so you can open it when you want and leave it closed when you don't.

12-31-2007, 06:14 PM	#3
chevy72blu Registered User Join Date: Apr 2004 Location: Las Vegas, NV Posts: 2,188	Re: How do I make the truck loud??? Flowtech makes some pretty decent manual cutouts that you weld in the exhaust system. You can bolt on or remove little blocker plates that allow the exhaust to exit right behind the muffler. Its quite a bit quieter than open headers, but still obnoxiously loud. I used to use a nut as a spacer with the plates which gave it a really throaty growl while keeping it a little quieter. Just a warning though, its pretty tough to keep them from leaking when they are corked. I think I payed about 30 bucks each for mine __________________ RIP EastSideLowLife '72 C20 SWB convert. 5 lug, LS1/4l60e Last edited by chevy72blu; 12-31-2007 at 06:15 PM. Reason: \

12-31-2007, 06:18 PM	#5
jeffspower Well, Whoop-dee-do! Join Date: Mar 2003 Location: Easton, Mo. pop.- me & scarcely a few others Posts: 2,302	Re: How do I make the truck loud??? headers & no mufflers, just resonator tips sounds good on the old '68. And it's not the tacky straight pipe on manifolds kinda loud either. But I have to watch out for cops & back off the pedal when I see one __________________ '68 GMC shortbox 4x4 350/SM465/T221- bought it in '83 SOLD '72 K20 500 Cad/TH400/NP205 SOLD '92 Chevy 2500 6.5 mech TD 4L80E crusty daily driver '72 Monte Carlo... sweet low mile toy '11 Dodge Challenger IE 392 6spd... midlife car

12-31-2007, 06:28 PM	#6
heavy71chevy Registered User Join Date: Apr 2007 Location: antreville, south carolina Posts: 873	Re: How do I make the truck loud??? ive got 3 inch headers with cherry bomb glasspack header mufflers and it has a real sweet idle and raw power when you open er on up __________________ "Dixie Destroyer" 71 C10 LWB Fleet Future Blown Prostreet Monster

12-31-2007, 06:32 PM	#7
green724x4 Registered User Join Date: Feb 2007 Location: MI Posts: 214	Re: How do I make the truck loud??? Proud to be a red neck right! ya. Got to run open headers not open manifolds tho.My buddy was running open manifolds on his 96 z71 and it sounded like he had crappy mufflers. Got to go with some headers. Heres an idea, get a build your own headers kit. But instead build some zoomie, tractor pull 'n headers. Just like a top fuel drag car. One pipe for each exhaust port. Then put them though your hood or fender so the flames from the unburnt fuel can shoot out. Ya. Anybody can be loud but you got to be diffrent. I think the cops will like that!

12-31-2007, 07:05 PM	#8
streetstar Registered User Join Date: May 2007 Location: Moore, Oklahoma Posts: 2,396	Re: How do I make the truck loud??? Here's a wild idea ---- why not put those douches' in their place and run your truck quieter than those dumb-A's, but faaaaaaaaster. Ultimate sleeper A nitrous kit would do it ----- an extra 100-150 hp might have your truck runnin 14's or 15's -- enough to put most Z-71 pimp boys in their place Quiet power is cool ---- loudness just equals fewer chicks for you. __________________ Are you retired too? Nonsense! I'm in my prime Last edited by streetstar; 12-31-2007 at 07:06 PM.

12-31-2007, 07:10 PM	#9
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,217	Re: How do I make the truck loud??? manual dumps is the way i want to go with mine __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

12-31-2007, 07:12 PM	#10
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,590	Re: How do I make the truck loud??? If its loud it better be fast!!!!! __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

12-31-2007, 07:17 PM	#11
67_C-30 I have a radical idea! Join Date: Jan 2005 Location: Sweet Home Alabama! Posts: 6,513	Re: How do I make the truck loud??? Yeah, cause everybody loves that ever-so-sweet sound of a late model Z71 with with straight pipes in OD doing about 45-50 MPH. They sound like an old 2 cyl John Deere w/o a muffler because they don't have enough back pressure and they are turning about 1600 RPM in OD. There's a significant difference in making it just loud and making it sound good while being loud. __________________ '67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club!

12-31-2007, 08:25 PM	#12
Shane Account Suspended Join Date: Jun 2000 Location: over yonder Posts: 14,270	Re: How do I make the truck loud??? you'll grow out of it ... maybe

12-31-2007, 08:36 PM	#13
72cheyennesuper20 Registered User Join Date: May 2005 Location: Portland, OR. Posts: 414	Re: How do I make the truck loud??? Go Flowmasters or Borla. Just say no to glasspacks or Cherry bombs, the 80's are over.

12-31-2007, 08:57 PM	#14
cstm68 Registered User Join Date: Jan 2007 Location: shoreline, wa Posts: 1,565	Re: How do I make the truck loud??? flowmaster super 40's or super 44's __________________ 68 swb fleet bagged on 20's 327 with 4 speed http://67-72chevytrucks.com/vboard/s...d.php?t=223308 2014 Chevy 2500hd duramax CCLB

01-01-2008, 03:09 AM	#15
Joes69c10 Proud Father Join Date: May 2007 Location: Duff, Tn. Posts: 102	Re: How do I make the truck loud??? __________________ 1969 Chevy C/10 "My dad's, May he rest in peace" 1988 GMC Suburban 1/2 ton 2wd 1952 Ford F-600 1989 Toyota P/U "The Beater"

01-01-2008, 03:33 AM	#16
hotrod 80 mini truck racer Join Date: Aug 2006 Location: Baytown , texas Posts: 3,010	Re: How do I make the truck loud??? Back in the day we would have the muffler shop install the glasspacks backwards .



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01-01-2008, 04:38 AM	#17
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: How do I make the truck loud??? In the`80s it was turbo mufflers.Glasspacks went out in the early`70s when sound started being enforced more.So...go with glasspacks.You want loud,right?SMITTY`S !!!! __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ Last edited by special-K; 01-02-2008 at 06:04 AM.

01-01-2008, 07:25 AM	#18
68350 Senior Member Join Date: Jan 2002 Location: Williston, ND Posts: 2,999	Re: How do I make the truck loud??? i'll admit it, I'm one of those z-71 straight pipe owners. loud on your gmc could be accomplished by something such as manifolds with straight pipes and 90 degree angles behind the tires(I have heard it, and it's LOUD!!). straight pipes under the bumper is loud, but not as loud. headers and straight pipes will be loud, too. Just remember, if you put a 45 or 90 degree angle or something at the tips, it WILL make it louder than just straight out the back. the 90 degree angle will be the loudest. if you want really, really loud, put an s-curve in the pipes. hope it helps __________________ 68 Chevy CST/10, 50th Anniversary, 327/th400, 373 posi, buckets 68 GMC Shortbox Stepside, 402/th400, Tilt, Tach, Bucket Seats, 3.08 Positraction 69 Chevy Camaro SS, 383, 4 speed, positraction 70 Chevy El Camino SS396, Triple Black, 454/th400, Tach 70 Chevy Shortbox Stepside 4x4, 350/th350, Tilt, Tach, Cab Lights, Bumper Guards, Tow Hooks 70 Chevy 3/4 Longbox, 350/auto, 70k, SURVIVOR 71 Chevy Blazer, CST, 350/auto 71 GMC Sierra K2500, 454, 4 speed, 4.10 posi, 37s 71 Custom/30, Open Road, 350/th400, tilt 72 Chevy Shortbox Fleetside, 496 Stroker/th400, Tilt, Tach, Bucket Seats, 3.42 Posi 72 GMC Sierra Grande 2500. 427/th400, tilt, a/c, tool and stowage, buckets/console, 3.54 posi

01-01-2008, 08:30 AM	#19
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: How do I make the truck loud??? Have ya tryed baseball cards?? __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

01-01-2008, 09:18 AM	#22
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: How do I make the truck loud??? Tune in next month for,"How do I quiet it down?I keep getting pulled over",thread. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

01-01-2008, 10:27 AM	#25
70cst Senior Member Join Date: Feb 2001 Location: New Madison, Ohio Posts: 21,339	Re: How do I make the truck loud??? I find this thread interesting. The sound is referenced around a Z71 but I wonder how the Z71 sounds when compared to the true muscle car sounds on the 60's and 70's. I must must be getting old because when I think of hp sounds I think of muscles cars and not a Z71. Come to think of it I am getting old because I am thinking of ways to tone down my 402bb. __________________ A husband can be right...or...A husband can be happy. 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder!

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