Best sounding mufflers for a 327? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GKsport67 · 02-03-2008, 02:55 PM

I wanted to know what brand of mufflers would give me that street race sound?
My truck has a 327/350 tranny.

Couch · 02-03-2008, 07:15 PM

everyone does the flowmasters. i personally like the dynomax pro welded mufflers.summit #WLK-17221. i went with these on my 350.

cdowns · 02-04-2008, 01:51 AM

you'll get more of a "race" sound by having a built motor $$$$ than any noise amplifying mufflers

69halfton · 02-04-2008, 11:53 AM

ive got two magna flows on my 383.

quiet, until you step on it.

then i get in trouble aha

however, its well-built

kwhite4 · 02-06-2008, 01:25 AM

I had Flowmaster super 40's on my truck before the engine change and the thing was way too loud . Then again I ended my exhaust just past the cab,
but i dont think it could of sounded any meaner.

72freak · 02-06-2008, 02:19 AM

I have Dynomax super turbos on my 327

swb85 · 02-06-2008, 04:02 AM

I've got super 44's on my truck, sounds pretty mean. I've got 10 series race mufflers on my ls1 camaro, also very mean but even louder. For a quieter muffler, I really like dynomax ultra flows.

LUV2XCLR8 · 02-06-2008, 06:11 AM

Magnaflow

Classic69 · 02-08-2008, 04:49 AM

I've got dual magnaflows on my '69

JAKES 68GMC · 02-08-2008, 05:39 AM

Cheapo THRUSH TURBOS!

BLE 'BURBAN · 02-08-2008, 06:23 AM

Dude kust go real old school camaro with some dimpled straight pipes then run it straight out the back with 4" resonator tips!!!!! you want loud? You'll have it!!!!

jegs72 · 02-09-2008, 08:03 AM

I've got Flowmaster Super 40's coming out the sides just before the rear wheels. Boy, do they give it that mean, aggressive sound.

hyarbour · 02-10-2008, 02:06 AM

"Cheapo THRUSH TURBOS!"
Sorry guys, but I have to agree with Jakes 68GMC. I had a set on my '76 Chevy. They sounded great & didn't cost much

PA-IndianRider · 02-10-2008, 02:19 AM

Quote:

Originally Posted by JAKES 68GMC

Cheapo THRUSH TURBOS!

By far the very best sounding mufflers where the round - shorty "Thrush" mufflers

They were "straight" thru design, less than 24" long NOT anything like those "red-Cherry Bomb" looking ones that Thrust makes today.

They had the "tradition" THRUSH MUFFLER look wth blue stripes and a Woodpecker head and the words "THRUSH" on them.

The Thrush "turbo" muffler is "much bigger" and is an "oval shaped" muffler with a much more "quiet/mellow" sound by design. The ads back then for the "Thrush Turbos" said the "Turbos" had the "same" great performance without being as loud an "original Thrush" (round) muffler. This "round design" also came in a "longer length" with/without header flanges.

Sadly I have NOT seen these mufflers around for quite a long time. ..... ahhhhh ...... but I can STILL hear them "roar"........ memories .....

Daddy64 · 02-10-2008, 03:48 AM

PA, you are right those old Thrust mufflers were bad a$$. My Dad's 64 with a 283 had them and everyone always looked to see what sounded so good when I drove it. We are going back with glasspacks on the rebuild but I don't think it will sound like it did back in the day.

hyarbour · 02-10-2008, 04:59 AM

Actually Summit sells the Thrush glasspacks and turbos. It looks like they're made by Dynomax now.

PA-IndianRider · 02-10-2008, 05:27 AM

Quote:

Originally Posted by hyarbour

Actually Summit sells the Thrush glasspacks and turbos. It looks like they're made by Dynomax now.

I saw that ... got the "Summit - Jegs & Speedway" catalogs memorized....HA!!! Sadly NO "shorty Thrust mufflers".

Those mufflers sounded sooooo good... not just at idle but especially mid-way thru the power curve. No other muffler could make that "throaty, hash, nasty" sound quite like a "shorty Thrush" ..... I'm sure because of it's great sound (aka LOUD) is why there are NO LONGER available to us. RIP.....

71Dragtruck · 02-11-2008, 07:16 AM

Well if you want a flash back, anyone else remember Royal Scott's?

71Dragtruck · 02-11-2008, 07:18 AM

Magnaflows

http://videos.streetfire.net/video/e...9e0158d255.htm

DREAMS OF A 67 · 02-25-2008, 04:01 AM

I agree with the shorty thrush.

Pyrotechnic · 02-25-2008, 05:03 AM

I like Flowmasters with long tube headers. It's nothing like you hear from the new trucks with manifolds and cats. With long tube headers, you get the full range of sound but it's not harsh. You may hear Flowmasters with manifolds and cats every day on countless new trucks, but long tube headers with Flowmasters is not something you hear all the time...well unless you have that particular setup.

Also, cam and compression play a big part in the sound.

keith nohner · 04-04-2008, 07:02 AM

I just put my derby car 305 in my driver 72, I am going to try thrush welded turbo mufflers from summit 29.95 a piece 2 1/2 inch just to the rear end with headman headers, have flowmasters on my nova, but cheaped out on the daily driver, I bet they are going to sound good for a stock 305 anyway.. Gas mileage you know, going to try e-85 two barrel rochester carb on four barrel intake, 3.08 gears, what do you think the mileage will be ?

JAKES 68GMC · 04-05-2008, 02:26 AM

My buddy has true dual Thrush welded mufflers on his 02 Chevy 2500 with a 6.0, and I have a one-in two-out on my truck. I think they sound great, they are nice deep tone and good rumble. They don't really sound like flowmasters, which is a good thing IMO. I'm going to get a pair for the 68, because they impressed me that much.

collin86 · 04-05-2008, 03:44 AM

Spintech

gchemist · 04-07-2008, 06:41 AM

I agree with Magnaflows. At highway speeds 70 mpg (~2000) dual magnaflows are quiter than a single 40 Flowmaster. Anything above ~2300 is ALIVE with sound. Idle and low RPMs sound great. Visit their website for sound clips.

02-03-2008, 02:55 PM	#1
GKsport67 Registered User Join Date: Jan 2008 Location: Atlanta,Ga Posts: 660	Best sounding mufflers for a 327? I wanted to know what brand of mufflers would give me that street race sound? My truck has a 327/350 tranny. __________________ www.gkautospa.com Like A Rock! http://67-72chevytrucks.com/vboard/s...d.php?t=397153

02-03-2008, 07:15 PM	#2
Couch Daily Driver Join Date: Jul 2007 Location: fresno,ca Posts: 228	Re: Best sounding mufflers for a 327? everyone does the flowmasters. i personally like the dynomax pro welded mufflers.summit #WLK-17221. i went with these on my 350. __________________ nitrous...the equal opportunity destroyer.

02-04-2008, 01:51 AM	#3
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Best sounding mufflers for a 327? you'll get more of a "race" sound by having a built motor $$$$ than any noise amplifying mufflers __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

02-04-2008, 11:53 AM	#4
69halfton Registered User Join Date: Apr 2007 Location: King City, Ontario, Canada Posts: 974	Re: Best sounding mufflers for a 327? ive got two magna flows on my 383. quiet, until you step on it. then i get in trouble aha however, its well-built __________________ - Jason If you can turn, Youre not going fast enough. Favorite caption: first car to 200 mph in the 1/4 mile, no parachute, drum brakes all the way around.. ..back when men were men. Last edited by 69halfton; 02-04-2008 at 11:54 AM.

02-06-2008, 01:25 AM	#5
kwhite4 Junior Member Join Date: Oct 2004 Location: Gatesville texas Posts: 180	Re: Best sounding mufflers for a 327? I had Flowmaster super 40's on my truck before the engine change and the thing was way too loud . Then again I ended my exhaust just past the cab, but i dont think it could of sounded any meaner. __________________ 68 GMC 565 BBC Abruzzi super pro glide 9.85@135.00

02-06-2008, 02:19 AM	#6
72freak Rottenwood Garage Member Join Date: May 2005 Location: Marietta, Georgia Posts: 4,321	Re: Best sounding mufflers for a 327? I have Dynomax super turbos on my 327 __________________ 2004 Chevrolet Suburban C1500 2001 Chevrolet 2500HD Crew 6.0 1999 Harley Davidson Electra Glide 1972 Chevrolet C-20 Custom Camper "Dump Truck" 1972 Chevrolet C-20 Suburban "Big Green" 1969 Chevrolet C-50 Wedge Hauler "Leonidis" 1966 C-10 2x4 short fleet 327 4 speed "Race Truck" 1952 Plymouth Cranbrook "Rican" (my grandfathers) 1931 Ford Model A Coupe "Black Beauty" 1930 Ford Model A truck "Club Cab" 4x4 Rottenwood Garage and Speed Shop.....where everything must be racy! *It's not just a hobby..It's a LIFESTYLE!!!* Thanks for nothing Barrett-Jackson You cant fix stupid or teach accountability! Time wasters, looky Lous and tire kickers are everywhere!

02-06-2008, 04:02 AM	#7
swb85 On a budget like Fred Sanford Join Date: Oct 2005 Location: Topeka, KS Posts: 2,031	Re: Best sounding mufflers for a 327? I've got super 44's on my truck, sounds pretty mean. I've got 10 series race mufflers on my ls1 camaro, also very mean but even louder. For a quieter muffler, I really like dynomax ultra flows. __________________ '85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD

02-06-2008, 06:11 AM	#8
LUV2XCLR8 The LuvShack Garage Join Date: Jan 2004 Location: Maple Grove, TN (West Side) Posts: 30,470	Re: Best sounding mufflers for a 327? Magnaflow __________________ Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Big Piggy: "Goliath" 07 Kodiak C4500 Lil Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T

02-08-2008, 04:49 AM	#9
Classic69 Love That '69 Join Date: Oct 2007 Location: Sherwood Park, Alberta, Canada Posts: 360	Re: Best sounding mufflers for a 327? I've got dual magnaflows on my '69 __________________ *I AM CANADIAN!!!!!* 1969 Chevy C/10 Truck - SBC V8, TH-350, 3.73 Posi, 1000W Rockford Fosgate Stereo System, B&M Megashifter, GT Grant Steering Wheel, Dual Magnaflow Exhaust System, Dynomax Headers, Lowered 1" Front & 3" Rear, Front/Rear Sway Bars, Racing Seats, 6000K HID Headlights 2008 Chevy Colorado LT - 3.7L I5, 4 Speed Automatic, Crew Cab, 4X4, Z71 Off-Road Package, "Ground Effects" Package, K&N Cold Air Intake, Supermod PTB, Magnaflow Exhaust w/ Resonator, 500W Kenwood / Rockford Fosgate Stereo System, Custom LED Lighting, 6000K HID Low's / High's, Blackcat Customs Gauges / Needles, Carbon Fiber Interior Accents, KrFabs 2" Lift Shackles / Torsion Bar Crank with Rancho RS5000 Shocks, Superskids Skid Plates

02-08-2008, 05:39 AM	#10
JAKES 68GMC Aluminum slot wheels rule... Join Date: Jan 2006 Location: Maine Posts: 6,212	Re: Best sounding mufflers for a 327? Cheapo THRUSH TURBOS! Last edited by JAKES 68GMC; 02-08-2008 at 05:39 AM.

02-08-2008, 06:23 AM	#11
BLE 'BURBAN In the Forgotten far North. Join Date: Jul 2007 Location: Anchorage, Alaska Posts: 2,627	Re: Best sounding mufflers for a 327? Dude kust go real old school camaro with some dimpled straight pipes then run it straight out the back with 4" resonator tips!!!!! you want loud? You'll have it!!!! __________________ 1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade

02-09-2008, 08:03 AM	#12
jegs72 Registered User Join Date: Jan 2008 Location: San Diego, California Posts: 28	Re: Best sounding mufflers for a 327? I've got Flowmaster Super 40's coming out the sides just before the rear wheels. Boy, do they give it that mean, aggressive sound. __________________ 72' Cheyenne lwb California truck

02-10-2008, 02:06 AM	#13
hyarbour Registered User Join Date: Jan 2007 Location: Fairview, ks Posts: 203	Re: Best sounding mufflers for a 327? "Cheapo THRUSH TURBOS!" Sorry guys, but I have to agree with Jakes 68GMC. I had a set on my '76 Chevy. They sounded great & didn't cost much

02-10-2008, 03:48 AM	#15
Daddy64 Registered User Join Date: Nov 2007 Location: Fort Mill SC Posts: 62	Re: Best sounding mufflers for a 327? PA, you are right those old Thrust mufflers were bad a$$. My Dad's 64 with a 283 had them and everyone always looked to see what sounded so good when I drove it. We are going back with glasspacks on the rebuild but I don't think it will sound like it did back in the day.

02-10-2008, 04:59 AM	#16
hyarbour Registered User Join Date: Jan 2007 Location: Fairview, ks Posts: 203	Re: Best sounding mufflers for a 327? Actually Summit sells the Thrush glasspacks and turbos. It looks like they're made by Dynomax now.



Register or Log In To remove these advertisements.

02-11-2008, 07:16 AM	#18
71Dragtruck Registered User Join Date: Jun 2004 Location: Saskatchewan, Canada Posts: 1,368	Re: Best sounding mufflers for a 327? Well if you want a flash back, anyone else remember Royal Scott's? __________________ Speed is just a matter of money, question is how fast can you afford to go? 8.95@148.97mph all motor haven't tried bottle yet Sponsored by: Getz Oilfield Consulting Hard Candy Customs Last edited by 71Dragtruck; 02-11-2008 at 07:16 AM.

02-11-2008, 07:18 AM	#19
71Dragtruck Registered User Join Date: Jun 2004 Location: Saskatchewan, Canada Posts: 1,368	Re: Best sounding mufflers for a 327? Magnaflows http://videos.streetfire.net/video/e...9e0158d255.htm __________________ Speed is just a matter of money, question is how fast can you afford to go? 8.95@148.97mph all motor haven't tried bottle yet Sponsored by: Getz Oilfield Consulting Hard Candy Customs

02-25-2008, 04:01 AM	#20
DREAMS OF A 67 Step Brother Join Date: Sep 2007 Location: knoxville TN Posts: 1,950	Re: Best sounding mufflers for a 327? I agree with the shorty thrush.

02-25-2008, 05:03 AM	#21
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	Re: Best sounding mufflers for a 327? I like Flowmasters with long tube headers. It's nothing like you hear from the new trucks with manifolds and cats. With long tube headers, you get the full range of sound but it's not harsh. You may hear Flowmasters with manifolds and cats every day on countless new trucks, but long tube headers with Flowmasters is not something you hear all the time...well unless you have that particular setup. Also, cam and compression play a big part in the sound. Last edited by Pyrotechnic; 02-25-2008 at 05:03 AM.

04-04-2008, 07:02 AM	#22
keith nohner Registered User Join Date: Oct 2006 Location: Thief River Falls Mn Posts: 30	Re: Best sounding mufflers for a 327? I just put my derby car 305 in my driver 72, I am going to try thrush welded turbo mufflers from summit 29.95 a piece 2 1/2 inch just to the rear end with headman headers, have flowmasters on my nova, but cheaped out on the daily driver, I bet they are going to sound good for a stock 305 anyway.. Gas mileage you know, going to try e-85 two barrel rochester carb on four barrel intake, 3.08 gears, what do you think the mileage will be ?

04-05-2008, 02:26 AM	#23
JAKES 68GMC Aluminum slot wheels rule... Join Date: Jan 2006 Location: Maine Posts: 6,212	Re: Best sounding mufflers for a 327? My buddy has true dual Thrush welded mufflers on his 02 Chevy 2500 with a 6.0, and I have a one-in two-out on my truck. I think they sound great, they are nice deep tone and good rumble. They don't really sound like flowmasters, which is a good thing IMO. I'm going to get a pair for the 68, because they impressed me that much.

04-05-2008, 03:44 AM	#24
collin86 Registered User Join Date: Sep 2007 Location: spokane, WA Posts: 136	Re: Best sounding mufflers for a 327? Spintech __________________ 1986 swb...soon to be some weird pro touring look..but better 92 jeep cherokee.... crawler

04-07-2008, 06:41 AM	#25
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: Best sounding mufflers for a 327? I agree with Magnaflows. At highway speeds 70 mpg (~2000) dual magnaflows are quiter than a single 40 Flowmaster. Anything above ~2300 is ALIVE with sound. Idle and low RPMs sound great. Visit their website for sound clips. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

Register or Log In To remove these advertisements.