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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Cammed87Chevy on September 28, 2011, 10:02:05 pm

Title: exhaust question
Post by: Cammed87Chevy on September 28, 2011, 10:02:05 pm: i put in a new motor and replaced the exhaust pipes from headers to muffler to 2.5in and the muffler is smaller then that and also is the pipe going to the tips. will this cause any issues? i have turbo mufflers and i love the way the truck sounds with the cam. any suggestions would be helpful
thanks in advanced
Title: Re: exhaust question
Post by: beastie_3 on September 29, 2011, 02:01:22 am: how much smaller?

engine specs?
Title: Re: exhaust question
Post by: Cammed87Chevy on September 29, 2011, 01:04:19 pm: 4 bolt main 350
cam
holley street avenger carb 570cfm

not sure about the size of the pipe. im thinking stock size. ill see if i can get the size later today
Title: Re: exhaust question
Post by: screamin86 on September 29, 2011, 05:13:27 pm: What are the cam specs and what heads are you running?
Title: Re: exhaust question
Post by: Cammed87Chevy on September 29, 2011, 05:26:40 pm: i really dont no the full specs of it. a long story with the dam mechanic. went sour

all i remember him saying 440 lift on the cam. he got the motor to his shop on a pallet from dallas,tx
Title: Re: exhaust question
Post by: screamin86 on September 29, 2011, 05:37:28 pm: Is it a single style exhaust meaning not true duals just a single muffler. Imo you can't beat a single 3in exhaust. Isnt the stock size on these trucks like 2.25 or 2.5?
Title: Re: exhaust question
Post by: Cammed87Chevy on September 29, 2011, 06:47:09 pm: a true dual exhaust. well you can tell that the new pipe is bigger. maybe an inch or so... where the new pipe meets the muffler there is a piece of the old pipe and it smaller. will this affect anything?? if so what other muffler will sound like the turbo muffler
Title: Re: exhaust question
Post by: screamin86 on September 29, 2011, 07:02:17 pm: You can buy new turbo mufflers pretty cheap. Like $20 a piece.
Title: Re: exhaust question
Post by: Cammed87Chevy on September 29, 2011, 08:25:44 pm: from where? should i by new ones that match the same size as the new pipes?
Title: Re: exhaust question
Post by: screamin86 on September 29, 2011, 09:05:38 pm: The last set I bought were summit racing turbo mufflers. A lot of times like advanced auto or autozone have them also. I'd get thw saze of your new piping.
Title: Re: exhaust question
Post by: Cammed87Chevy on September 29, 2011, 10:51:06 pm: thanks for the help! I found them on summit for 25.95
Title: Re: exhaust question
Post by: screamin86 on September 30, 2011, 12:43:08 am: Cool no problem. They have gone up bad. Like 3 years ago they were $16 each lol I bought 2 3in turbo mufflers about 2yrs ago they were like $20 each.