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-   -   Your opinion on mufflers for 86 350? (https://67-72chevytrucks.com/vboard/showthread.php?t=434159)

1LOW4X4 12-05-2010 03:36 AM

Your opinion on mufflers for 86 350?
 
Hey guys, my 86 has a pretty strong engine with an agressive cam and all that, but after the 3" collectors on the headers, it steps down to like 1 3/4" pipe and then goes thru some glasspack type mufflers, then dumps before the axle.

I like the dump part, but I'm going dual 2 1/2" pipe and wanted to know what mufflers would sound good but not break the bank. 40 series flowmaster?

I dont know. I need 2 1/2" single in and out mufflers of some sort, and wanted your opinion. Thanks!

heres a vid of it running now.

http://i752.photobucket.com/albums/x...4x4/th_114.jpg

79'84'chevy 12-05-2010 04:50 AM

Re: Your opinion on mufflers for 86 350?
 
super 40 flowmasters sound nice. so do the 44's

flamingbig10 12-05-2010 11:57 AM

Re: Your opinion on mufflers for 86 350?
 
flow master super 10s
http://www.summitracing.com/parts/FLO-842518/

baclay9 12-05-2010 12:14 PM

Re: Your opinion on mufflers for 86 350?
 
Spintech's sound great and have a much better reputation for flow than flowmasters do. The sportsman series are comparible in sound to 40 series flows but don't have the "tinny" sound associated with flowmasters.

Everyone is going to have an opinion on this though so you will just have to pick one and go for it. My friend has a very hot 350 in his truck and is running 40 series flows and it sounds really mean! I just don't like the "tinny" sound when he gooses it.

I went back and forth on this as I am building a motor for my truck right now and will be doing exhaust soon. On the one hand I knew how good my buddies truck sounded but also knew I wasn't crazy about the WOT sound. One the other hand I found these fairly new Spintech mufflers that everyone that has tried them seems to be raving about them. I have never actually heard them in person just on Youtube. They sound incredible though and have awesome reviews. I decided to take a chance on them. I personally went with The Prostreet 6000 series Spintech which I am guessing is comparable in volume to a 1 chamber flowmaster. The Prostreets are very small mufflers only measureing 4"x6"x12". As I said earlier the Sportsman series may be more up your alley. Good luck man!

Dalaigh 12-05-2010 01:15 PM

Re: Your opinion on mufflers for 86 350?
 
I would stay way from Flowmaster, because you want to dump. Dumping the exhaust cause a bit of droning from any exhaust system, and flowmaster drone bad enough to start, it'll drive you nuts. I have Thursh welded mufflers, they are the same design idea as the Flowmaster super 40's and sound similar, but they don't drone or have that tinny sound.

THE "10" SILVERADO 12-05-2010 01:34 PM

Re: Your opinion on mufflers for 86 350?
 
Quote:

Originally Posted by 79'84'chevy (Post 4332016)
super 40 flowmasters sound nice. so do the 44's

Never heard the 44's before....any difference in sound?

Malo83 12-05-2010 02:37 PM

Re: Your opinion on mufflers for 86 350?
 
Quote:

Originally Posted by Dalaigh (Post 4332356)
I would stay way from Flowmaster, because you want to dump. Dumping the exhaust cause a bit of droning from any exhaust system, and flowmaster drone bad enough to start, it'll drive you nuts. I have Thursh welded mufflers, they are the same design idea as the Flowmaster super 40's and sound similar, but they don't drone or have that tinny sound.

I'm running a single 3" exhaust and cat into a Flow 40 muffler with the 3" inlet and dual 2.5 outlets dumped in front of the axle and love it,deep agressive sound :metal:

3r!c84 12-05-2010 06:25 PM

Re: Your opinion on mufflers for 86 350?
 
heres my truck. hot 400sbc with flowmaster 40s
my pop corn maker ;)

1LOW4X4 12-05-2010 08:22 PM

Re: Your opinion on mufflers for 86 350?
 
Nice, couldn't tell if they were dumped? Also what's the specs on your cam, and your exhaust? Headers etc?
Posted via Mobile Device

gchemist 12-05-2010 09:25 PM

Re: Your opinion on mufflers for 86 350?
 
For actual better exhaust flow, Magnaflow!!

lilpoindexter 12-05-2010 09:36 PM

Re: Your opinion on mufflers for 86 350?
 
Flowmasters, with a cross over pipe, if you don't already have one. Flowmaster is the king of all mufflers.

1LOW4X4 12-05-2010 09:42 PM

Re: Your opinion on mufflers for 86 350?
 
Quote:

Originally Posted by gchemist (Post 4333179)
For actual better exhaust flow, Magnaflow!!

LOL I actually have a massive Stainless dual 3" in and Dual 3" out under my '01....I like it.

dexter: would adding a crossover pipe help me?

baclay9 12-05-2010 10:36 PM

Re: Your opinion on mufflers for 86 350?
 
Quote:

Originally Posted by 3r!c84 (Post 4332822)
heres my truck. hot 400sbc with flowmaster 40s
YouTube - 84 c10 400sbc
my pop corn maker ;)

Love your idle man!!! I hope mines lope sounds that good.
Posted via Mobile Device

gchemist 12-05-2010 10:42 PM

Re: Your opinion on mufflers for 86 350?
 
http://thumb13.webshots.net/t/50/650...3zAvaLF_th.jpg

I'll put up my setup against a Flowmaster setup any day. For power with an identical engine, I'll blow it away.

3r!c84 12-05-2010 10:43 PM

Re: Your opinion on mufflers for 86 350?
 
Quote:

Originally Posted by 1LOW4X4 (Post 4333041)
Nice, couldn't tell if they were dumped? Also what's the specs on your cam, and your exhaust? Headers etc?
Posted via Mobile Device

400sbc worked up some.. with
long tube headers into 2.5 pipe dumped before the rear end. no x or h pipe.
.503/.510 lift Elgin cam

bucannon 12-06-2010 05:08 AM

Re: Your opinion on mufflers for 86 350?
 
Flowmaster super 44's

k10shortbox 12-09-2010 12:51 AM

Re: Your opinion on mufflers for 86 350?
 
I vote spintechs as well, I put them on mine and they sound very throaty without the drone and they are dumped

INSIDIOUS '86 12-09-2010 01:11 AM

Re: Your opinion on mufflers for 86 350?
 
I have a bid of my truck with a lopey idle and a 3 in system with x pipe and purple hornie dumps ile post the vid. I'm on an iPhone so getting a phone vid to here will take time
Posted via Mobile Device

INSIDIOUS '86 12-09-2010 01:55 AM

Re: Your opinion on mufflers for 86 350?
 
you have no idea how long it took to get this from my phone to here lol.
hope you guys like it my truck is just at the threshold of overloading the microphone on my phone so sound isnt as good as it really is

http://s270.photobucket.com/albums/j...t=IMG_0057.mp4

THE "10" SILVERADO 12-09-2010 09:39 AM

Re: Your opinion on mufflers for 86 350?
 
Quote:

Originally Posted by INSIDIOUS '86 (Post 4339875)
you have no idea how long it took to get this from my phone to here lol.
hope you guys like it my truck is just at the threshold of overloading the microphone on my phone so sound isnt as good as it really is

http://s270.photobucket.com/albums/j...t=IMG_0057.mp4

I've never seen the tach on that part of the instrument cluster before......good idea!

jkade 12-09-2010 10:11 AM

Re: Your opinion on mufflers for 86 350?
 
If you want a good cheap muffler get a Full Boar... they are pretty much the same as a flow master. I have a set on my 86 K10 and I love them and I am going to put a set on my M1009 with the 6.0 and it should be making well over 400hp.

INSIDIOUS '86 12-09-2010 12:18 PM

Re: Your opinion on mufflers for 86 350?
 
Quote:

Originally Posted by THE "10" SILVERADO (Post 4340074)
I've never seen the tach on that part of the instrument cluster before......good idea!

Thanks it's a harbor frieght tach that cost 12 bucks and has like 8 colors. Took alot to get it in there though.

Has anybody on the forum have a video of there spintechs?
Posted via Mobile Device

WigglesTheHoly 12-09-2010 01:23 PM

Re: Your opinion on mufflers for 86 350?
 
man it never fails I stop by the site and I end up reading a post and deciding to drop money on the same thing lol.

manimal 12-09-2010 02:05 PM

Re: Your opinion on mufflers for 86 350?
 
Magnaflow or DynoMax. They are a straight through muffler and will make more power than a Flowmaster OR spintech. Plus they sound GREAT.

3r!c84 12-09-2010 02:19 PM

Re: Your opinion on mufflers for 86 350?
 
Quote:

Originally Posted by manimal (Post 4340480)
Magnaflow or DynoMax. They are a straight through muffler and will make more power than a Flowmaster OR spintech. Plus they sound GREAT.

I'm thinking about changing over to magnaflow mufflers from my flowmasters
Posted via Mobile Device


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