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1968 383 Roadrunner Assemblyline Exhaust Questions #1390110 02/19/13 01:19 AM 02/19/13 01:19 AM
Joined: Feb 2007 Posts: 628 Mass M Mike Mancini OP mopar
Mike Mancini OP mopar M Joined: Feb 2007 Posts: 628 Mass	Hi, Does anyone have a survivor 383 68RR with original exhaust. Trying to do some research on what true original assemblyline exhaust looks like for this application. Any pics or help is greatly appreciated. Thanks Mike

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: Mike Mancini] #1390111 02/19/13 06:37 PM 02/19/13 06:37 PM
A Anonymous Unregistered
Anonymous Unregistered A	I know its not a picture on the car but I heard ECS now makes exact reproduction pieces. Also Accurate Exhaust claims to be correct too. I know Gardner is expensive but don't know how correct theirs is. Maybe one of those 3 have either pics of originals on the car or off the car for comparison.

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: ] #1390112 02/19/13 07:12 PM 02/19/13 07:12 PM
Joined: Feb 2007 Posts: 628 Mass M Mike Mancini OP mopar
Mike Mancini OP mopar M Joined: Feb 2007 Posts: 628 Mass	I am looking for pics of original assembly line exhaust and mufflers removed from or currently installed on a 68 RR.

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: Mike Mancini] #1390113 02/19/13 07:18 PM 02/19/13 07:18 PM
A Anonymous Unregistered
Anonymous Unregistered A	oh ok. maybe one of them has some pics which would help ya?

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: Mike Mancini] #1390114 02/19/13 07:54 PM 02/19/13 07:54 PM
Joined: Nov 2005 Posts: 15,119 85086 moparpollack Lil Herman
moparpollack Lil Herman Joined: Nov 2005 Posts: 15,119 85086	How much of the exhaust any certain parts? 56 Plaza 63 D100 step side 67 Coronet, 68 Roadrunner, 69 Super Bees, 69 Coronet 500 convertible, 70 Roadrunner Post, 79 D150 360, and a severe case of Mopar a,d,d

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: moparpollack] #1390115 02/19/13 08:57 PM 02/19/13 08:57 PM
Joined: Jun 2008 Posts: 3,916 usa L lewtot184 master
lewtot184 master L Joined: Jun 2008 Posts: 3,916 usa	i remember on my '68 383 car that the exhaust pipe, 2 1/4" o.d., was welded to the muffler and the muffler was smaller than the 440 cars.

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: lewtot184] #1390116 02/20/13 12:14 AM 02/20/13 12:14 AM
Joined: Feb 2007 Posts: 628 Mass M Mike Mancini OP mopar
Mike Mancini OP mopar M Joined: Feb 2007 Posts: 628 Mass	Thanks Lewtot... i am looking for pics of the mufflers and headpipes and tailpipes. Any help is appreciated.

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: lewtot184] #1390117 02/20/13 07:32 AM 02/20/13 07:32 AM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: i remember on my '68 383 car that the exhaust pipe, 2 1/4" o.d., was welded to the muffler and the muffler was smaller than the 440 cars. Thats weird that Chrysler would make a different muffler for a separate B engine and waste all the money for engineering something different when the over the counter replacement stuff wast he same as the 440's. Even the parts book I have lists the same muffler for the big blocks.

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: ] #1390118 02/20/13 10:35 AM 02/20/13 10:35 AM
Joined: Jun 2008 Posts: 3,916 usa L lewtot184 master
lewtot184 master L Joined: Jun 2008 Posts: 3,916 usa	Quote: Quote: i remember on my '68 383 car that the exhaust pipe, 2 1/4" o.d., was welded to the muffler and the muffler was smaller than the 440 cars. Thats weird that Chrysler would make a different muffler for a separate B engine and waste all the money for engineering something different when the over the counter replacement stuff wast he same as the 440's. Even the parts book I have lists the same muffler for the big blocks. thats what i thought until i went to change them. i did end up using a 440 muffler because it would slip over the pipe and the replacement was a butt weld. remember that 383's had smaller exhaust and tail pipes vs the 440 cars.

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: lewtot184] #1390119 02/20/13 02:52 PM 02/20/13 02:52 PM
Joined: Jan 2003 Posts: 1,791 Big Sky Country M MO_PA top fuel
MO_PA top fuel M Joined: Jan 2003 Posts: 1,791 Big Sky Country	Butt weld would never be factory!! Sometimes on those new cars we at the dealer would put a couple of small welds at joints so the pipes would not twist and or come apart. Other times we drilled a small hole and put a small screw through the joint. As I remember the mufflers were the same length on 383's and 440's.

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: MO_PA] #1390120 02/20/13 05:30 PM 02/20/13 05:30 PM
Joined: Jan 2003 Posts: 17,518 Las Vegas, NV 6bblgt I Live Here
6bblgt I Live Here Joined: Jan 2003 Posts: 17,518 Las Vegas, NV	In 1970 they made specific 383 mufflers for cars sold in CA. So, a different factory exhaust/muffler for the introduction of the '68 383 Road Runner vs. 440 GTX (with H-pipe) is easily possible. When introduced, the '68 Road Runner was the only car available with the 383HP 335hp engine. Pontiac had a mechanically operated "cut-out/straight-thru" muffler available as an OPTION in '70, I'm sure a bunch of engineering went into that for the few that were built. Monies were spent on creating the correct desired "IMAGE".

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: MO_PA] #1390121 02/20/13 07:08 PM 02/20/13 07:08 PM
Joined: Jun 2008 Posts: 3,916 usa L lewtot184 master
lewtot184 master L Joined: Jun 2008 Posts: 3,916 usa	Quote: Butt weld would never be factory!! Sometimes on those new cars we at the dealer would put a couple of small welds at joints so the pipes would not twist and or come apart. Other times we drilled a small hole and put a small screw through the joint. As I remember the mufflers were the same length on 383's and 440's. really? i bought the car new in april of '68. played around with it for 6yrs. i think i ought to know what it was, .

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: 6bblgt] #1390122 02/20/13 07:15 PM 02/20/13 07:15 PM
Joined: Jun 2008 Posts: 3,916 usa L lewtot184 master
lewtot184 master L Joined: Jun 2008 Posts: 3,916 usa	Quote: In 1970 they made specific 383 mufflers for cars sold in CA. So, a different factory exhaust/muffler for the introduction of the '68 383 Road Runner vs. 440 GTX (with H-pipe) is easily possible. When introduced, the '68 Road Runner was the only car available with the 383HP 335hp engine. Pontiac had a mechanically operated "cut-out/straight-thru" muffler available as an OPTION in '70, I'm sure a bunch of engineering went into that for the few that were built. Monies were spent on creating the correct desired "IMAGE". i still have the original exhaust pipes off my '69 r/t, h-pipe and tails. the exhaust pipes on my road runner were 2 1/4" o.d.. they were swagged out at the manifolds with the 2 1/2" flanges welded to them; no h-pipe. the h-pipe of my r/t is welded one piece 2 1/2" with flattened sections and would not bolt to a 383 do to width. the r/t had 2 1/4" aluminized tail pipes, my road runner didn't.

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: lewtot184] #1390123 02/21/13 10:39 AM 02/21/13 10:39 AM
Joined: Jun 2008 Posts: 3,916 usa L lewtot184 master
lewtot184 master L Joined: Jun 2008 Posts: 3,916 usa	l was looking thru two service manuals, 1965 and 1969. if one looks closely at the schematics of the exhaust systems it is clear that only 440's and hemi's had the muffler clamped to the exhaust pipe. also, if one reads the instructions ('65 and '69 manual and i seriously doubt '68 would be different) for muffler removal (non-hemi) it clearly states to hacksaw the muffler off the exhaust pipe, which is what i had to do. 383 mufflers and 440 mufflers were different. a concourse correct 383 road runner would have a 2 1/4" muffler butt welded to a 2 1/4" exhaust pipe.

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: MO_PA] #1390124 02/21/13 04:43 PM 02/21/13 04:43 PM
Joined: Sep 2004 Posts: 1,294 Under the big sky S stateline pro stock
stateline pro stock S Joined: Sep 2004 Posts: 1,294 Under the big sky	Quote: Butt weld would never be factory!! Sometimes on those new cars we at the dealer would put a couple of small welds at joints so the pipes would not twist and or come apart. Other times we drilled a small hole and put a small screw through the joint. As I remember the mufflers were the same length on 383's and 440's. [/quote back in the 60s alot of the Chry. mufflers were butt welded to the head pipe as installed at the factory( no muffler clamp ) and the outlet was clamped to the tail pipe.- in the late 60s I mechaniced at a Chry.dealer - I cant remember the specifics of which cars were this way or if all were this way but we would cut the muffler off as close to the muffler body as possible and the replacement muffler was sized to slip over the pipe I thought about bringing this subject up before but figured the response it would get here. There was a feature on a big buck 440-6 Cuda in a mag. it showed the resonators welded to the head pipes which I figured was assembly line correct Last edited by stateline; 02/21/13 04:50 PM.

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: stateline] #1390125 02/21/13 05:22 PM 02/21/13 05:22 PM
Joined: Jun 2008 Posts: 3,916 usa L lewtot184 master
lewtot184 master L Joined: Jun 2008 Posts: 3,916 usa	"i thought about bringing this subject up before but figured the response it would get here",....ain't that the truth! typical moparts.

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: lewtot184] #1390126 02/21/13 05:56 PM 02/21/13 05:56 PM
Joined: Feb 2007 Posts: 628 Mass M Mike Mancini OP mopar
Mike Mancini OP mopar M Joined: Feb 2007 Posts: 628 Mass	Does anyone have pics of original 383 mufflers?

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: Mike Mancini] #1390127 02/21/13 06:44 PM 02/21/13 06:44 PM
Joined: Jan 2003 Posts: 75,050 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,050 U.S.S.A.	Quote: Does anyone have pics of original 383 mufflers? put your money where your mouth is ... typical moparts .... I have a serious question , where they actually but welded or did the muffler slip over the pipe and it was welded ?

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: Mike Mancini] #1390128 02/21/13 06:50 PM 02/21/13 06:50 PM
Joined: Dec 2003 Posts: 3,957 West Coast, CA T Troy master
Troy master T Joined: Dec 2003 Posts: 3,957 West Coast, CA	Quote: Does anyone have pics of original 383 mufflers? Mike....I don't think anybody does.... ....there is nothing like driving my 1968 Hemi Dart around town and having people looking at you like you're nuts!!

Re: 1968 383 Roadrunner Assemblyline Exhaust Questions [Re: Troy] #1390129 02/21/13 07:00 PM 02/21/13 07:00 PM
Joined: Jan 2003 Posts: 75,050 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,050 U.S.S.A.	Quote: Quote: Does anyone have pics of original 383 mufflers? Mike....I don't think anybody does.... There is a 27k mile original 69 RR on the 'bag I don't know it it has original exhaust on it , it looked to shiney , but it appeared to have welded mufflers and they were crushed corner like the original Hemi mufflers .

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