Posted By: 6T9Hemi
Stock Mufflers - 10/17/16 07:15 PM
What were used on 69 340's in 69 darts for mufflers? What is the closest replacement you can get?
Posted By: PurpleBeeper
Re: Stock Mufflers - 10/17/16 11:11 PM
or your local autoparts store that carries Walker
Posted By: rarefish
Re: Stock Mufflers - 10/18/16 04:06 AM
I bought theses muffles for my 69 Dart GTS 340 from Summit earlier this summer. I too was looking for a aftermarket muffler that was close to the original factory mufflers. So far, I have not installed them as the car is still apart, so I can't report on the fit or their sound.
https://www.summitracing.com/parts/sum-631122-xl/overview/
Posted By: JohnRR
Re: Stock Mufflers - 10/18/16 02:56 PM
I bought theses muffles for my 69 Dart GTS 340 from Summit earlier this summer. I too was looking for a aftermarket muffler that was close to the original factory mufflers. So far, I have not installed them as the car is still apart, so I can't report on the fit or their sound.
https://www.summitracing.com/parts/sum-631122-xl/overview/ 2.25 in and out ... NOT stock on a 69 340 equipped mopar.
I assume he is looking for actual FACTORY replacement , Accurate LTD or Gardner will be the only place that has them.
Here is the muffler you are looking for , you may actually want the ACM-18 though , 1 7/8 outlet like stock ... even the 383 and 440 equipped A bodies used that muffler because they used 340 tailpipes .
http://accurateltd.com/A-Body-Factory-Replacement-Muffler_p_198.html
Posted By: rarefish
Re: Stock Mufflers - 10/19/16 01:59 AM
I bought theses muffles for my 69 Dart GTS 340 from Summit earlier this summer. I too was looking for a aftermarket muffler that was close to the original factory mufflers. So far, I have not installed them as the car is still apart, so I can't report on the fit or their sound.
https://www.summitracing.com/parts/sum-631122-xl/overview/ 2.25 in and out ... NOT stock on a 69 340 equipped mopar.
I assume he is looking for actual FACTORY replacement , Accurate LTD or Gardner will be the only place that has them.
Here is the muffler you are looking for , you may actually want the ACM-18 though , 1 7/8 outlet like stock ... even the 383 and 440 equipped A bodies used that muffler because they used 340 tailpipes .
http://accurateltd.com/A-Body-Factory-Replacement-Muffler_p_198.html If it's not 2.25" in and out then what size was it on a stock 69 340 muffler? I talked to the people at Accurate and that's what I was lead to believe. The head pipes are 2.25" and I was told that the tail pipes are 2.25" and then reduce down to 2" along side of the gas tank for the factory 1-7/8" tips. Just when I thought I had this all figured out, I'm now learning something different.
Posted By: Tom Swope
Re: Stock Mufflers - 10/19/16 02:38 PM
Maybe this will clarify a few things. In 1967 and 1968 , 383 equipped a body cars
had 2" I.D. inlet and 2" I.D. outlet mufflers. On 1968 models when exhaust tips were first available , the two piece welded tailpipes reduced to 1-7/8" I.D. at the rear to accept the exhaust tips. In 1969 this changed for 383 , 340 and M code 440 models to 2-1/4" I.D. inlet and outlet mufflers. The 1969 welded two piece tailpipes were 2-1/4" O.D. at the front downsizing to 1-7/8" I.D. at the rear for the exhaust tips. Assembly line mufflers were welded directly to the headpipes for all models. To replace the muffler , the original muffler was sawed off of the headpipe and the replacement muffler clamped into place.
Posted By: JohnRR
Re: Stock Mufflers - 10/19/16 03:47 PM
Tom do you have a photo of an original 2 piece tailpipe ?
Posted By: Tom Swope
Re: Stock Mufflers - 10/19/16 08:13 PM
John , Here is one we removed from a 69 340 Barracuda that had the original assembly line exhaust.
Posted By: JohnRR
Re: Stock Mufflers - 10/19/16 10:07 PM
Thanks , that is very interesting , so the pipes I have are not factory then ...
Posted By: rarefish
Re: Stock Mufflers - 10/20/16 12:51 AM
Tom, Thanks for the tail pipe photo and also I appreciate you clarifying this issue. I have spent a lot of time trying to understand the factory exhaust mysteries for my 69 Dart.
Posted By: formula_s
Re: Stock Mufflers - 10/22/16 03:59 AM
or your local autoparts store that carries Walker
No Walker or AP exhaust for 340 a bodies is available . Been through that futile search.