What is the best exhaust configuration? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

pbro · 10-11-2011, 11:44 PM

I put an 86 chevy 350 in my 69 gmc, it has an edelbrock performer intake and 1405 edelbrock carb with no emissions. Currently the exhaust manifold come together. What is the best option for my exhaust configuration and what can I expect? FYI I don't drive fast but enjoy the drive.

Do I separate the exhaust and run exhaust out from each manifold?

Do I run both manifolds into one and run it out as one?

Do I run both manifolds into one then separate into two?
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**special-K** · 10-12-2011, 06:17 AM

Run both side out separate,but with a crossover closer to the front. I,personally,have never run a crossover and never felt I lacked anything. But,using a crossover is what common knowledge seems to support.

OJ1988 · 10-12-2011, 08:09 AM

Crossovers with smooth out the exhaust sound. Less poppy, if that makes sense.

I am running a 2.25" hearthrob dual system, with a Jegs h pipe.

PanelDeland · 10-12-2011, 08:40 AM

I would do Dual exhuast with a H or X pipe and run it all the way out the rear.I know many like side exit but I like the more "balanced" sound from twice pipes side by side.Use a quality muffler,listen to Magnaflows,Dynomax and others to determine which sound you like best for the kind of driving you'll be doing.2 1/4-2 1/2 should be big enough unless you plan on building more motor.

10-11-2011, 11:44 PM	#1
pbro Registered User Join Date: Apr 2009 Location: Kearney, Nebraska Posts: 26	What is the best exhaust configuration? I put an 86 chevy 350 in my 69 gmc, it has an edelbrock performer intake and 1405 edelbrock carb with no emissions. Currently the exhaust manifold come together. What is the best option for my exhaust configuration and what can I expect? FYI I don't drive fast but enjoy the drive. Do I separate the exhaust and run exhaust out from each manifold? Do I run both manifolds into one and run it out as one? Do I run both manifolds into one then separate into two? Posted via Mobile Device

10-12-2011, 06:17 AM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,861	Re: What is the best exhaust configuration? Run both side out separate,but with a crossover closer to the front. I,personally,have never run a crossover and never felt I lacked anything. But,using a crossover is what common knowledge seems to support. __________________ "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 ~

10-12-2011, 08:09 AM	#3
OJ1988 Just a car guy Join Date: Feb 2006 Location: New Washington, IN Posts: 991	Re: What is the best exhaust configuration? Crossovers with smooth out the exhaust sound. Less poppy, if that makes sense. I am running a 2.25" hearthrob dual system, with a Jegs h pipe. __________________ 1955 belair Blown Pro Street cruiser 1971 Camaro Pro Touring 1973 Vega Drag Car 1970 C20 tow rig

10-12-2011, 08:40 AM	#4
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	Re: What is the best exhaust configuration? I would do Dual exhuast with a H or X pipe and run it all the way out the rear.I know many like side exit but I like the more "balanced" sound from twice pipes side by side.Use a quality muffler,listen to Magnaflows,Dynomax and others to determine which sound you like best for the kind of driving you'll be doing.2 1/4-2 1/2 should be big enough unless you plan on building more motor. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"



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