Re: Looking for stock hemi mufflers
[Re: 420SIX]
#2366321
09/06/17 12:07 PM
09/06/17 12:07 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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You might try eBay/classic industries & Google to find some of the Hemi sites. I know the "Dynamax" (sp?) hemi repro muffs (I forget the mfr) got good reports (sound/quality/flow).
live every 24 hour block of time like it's your last day on earth
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Re: Looking for stock hemi mufflers
[Re: 420SIX]
#2366544
09/06/17 06:36 PM
09/06/17 06:36 PM
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Joined: Jan 2003
Posts: 20,184 Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,184
Park Forest, IL
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Call Jeff Long over in Paxton, Mark. He can probably fix you up. 217/379-4415
"Everybody funny, now you funny too."
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Re: Looking for stock hemi mufflers
[Re: dogdays]
#2366657
09/06/17 10:11 PM
09/06/17 10:11 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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Dynomax 17748 or 17749 are, I believe, quite close to the Hemi factory mufflers. I believe that there is a 3" version in the Dynomax catalog. Dynomax is the performance branch of Walker. Yes, there are (2) 3" versions, one with 2&1/2" internals & one with 3" all the way thru, that is the one you want tho it is way more expensive.
live every 24 hour block of time like it's your last day on earth
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Re: Looking for stock hemi mufflers
[Re: 420SIX]
#2366744
09/07/17 12:53 AM
09/07/17 12:53 AM
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Joined: Jan 2003
Posts: 8,398 Highland, MI.
Sunroofcuda
master
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master
Joined: Jan 2003
Posts: 8,398
Highland, MI.
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The Dynomax Super Turbos are not the same as the original Chrysler mufflers internally - they flow better than the OE ones I would bet on. The correct ones for the A & B-Bodies were 20" long bodies, & offset entry / center out. These design Super Turbos flow in either direction also. Dynomax called the 17748 a "Hemi" muffler - because of the configuration. A 3" version of this is #17769. This is also a 20" long body, but a larger oval body - 5.5" x 11". The center section of the Super Turbos are wrapped with a fiberglass blanket for sound absorption, but this will break-down & dissipate fairly quickly so the mufflers will get louder over time. The 3" version will get REALLY loud - I have a buddy that has the 16" bodied ones on a 440-6 Challenger & they sounded great when the system was new, but after a couple of summers the exhaust got ridiculously loud. Car needs resonators now to be tolerable - he still has not installed any & I've offered to make some for him. The Super Turbos look like stock mufflers - they have spun-locked heads, not welded construction. They have large diameter internal flow tubes, unlike OE mufflers that downsize internally. They also have a lifetime warranty - so keep your receipt. I would use the Dynomax instead of vintage OE mufflers any day.
No Man With A Good Car Needs To Be Justified
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Re: Looking for stock hemi mufflers
[Re: 420SIX]
#2367587
09/08/17 07:42 PM
09/08/17 07:42 PM
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Joined: Jun 2005
Posts: 2,507 Royersford, PA
bschargerse
master
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master
Joined: Jun 2005
Posts: 2,507
Royersford, PA
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I had the Dynomax 17747 (2-1/4" in / out) on my 67 Coronet and promptly took them off. At part throttle under load they sounded like a glass pack. I reinstalled the Accurate 6885 mufflers I had taken off. Much better.
Brian - 1971 Dodge Challenger "The Dodge, which was practically stock, just left the Mustang like you wouldn't believe."
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