1966 Exhaust System - Impala Tech
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post #1 of 19 (permalink) Old 10-16-2009, 10:53 AM Thread Starter
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1966 Exhaust System

I own a 1966 with a 327/275 engine. I want to install the judgung correct factory set up exhaust which includes the resonators. I have found them in the Classic Industries catalog. Any other suggested sources?
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post #2 of 19 (permalink) Old 10-16-2009, 10:56 AM Thread Starter
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Sorry for the mis-spelling. The word is judging.
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post #3 of 19 (permalink) Old 10-16-2009, 02:26 PM
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Try http://www.yearone.com/

1967 Chevy Impala 4 dr hrd tp...
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post #4 of 19 (permalink) Old 10-16-2009, 06:36 PM
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Hey Dean,
I purchased a complete system for my 70 Impala that has an LS-5 which from the factory required resonators. I checked out several companies for "The Factory Look" system. Waldron's Antique Exhaust supplied a system that looks AND fit just as it did new. They have the original configurations from GM. I went with a muffler that has all the right demensions,but has a "great sound" to it. They call it the Impostor, and it flows real well. www.waldronexhaust.com
Gary
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post #5 of 19 (permalink) Old 10-17-2009, 08:30 AM
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Classic Industries just quoted me $250 to ship me that system! Kepich quoted me $60 (plus the system at $340) and they assure me that their system is fully correct. Waldron wants $570 plus shipping (I just requested that quote). I know Waldron is a quality system, but can I justify that price?
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post #6 of 19 (permalink) Old 10-17-2009, 10:27 AM Thread Starter
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Thanks for the input from everybody. I did look in the Classic Industries catalog and it indicates that this system is $399.99. This is for everything fron exhaust manifolds to rear including resonators. Do they offer special pricing if you call? I do know that occasionally they have a 20% off coupon.
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post #7 of 19 (permalink) Old 10-17-2009, 10:29 AM Thread Starter
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Oh! I just realized that Classic wanted $250 just in shipping. Now I understand. Thanks.
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post #8 of 19 (permalink) Old 10-17-2009, 02:47 PM
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Check with NAPA to see if Walker still makes the parts.

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post #9 of 19 (permalink) Old 10-17-2009, 03:53 PM Thread Starter
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Thanks, I'll check. I do know that the Walker Website lists the parts, but no resonators.
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post #10 of 19 (permalink) Old 10-27-2009, 09:45 PM Thread Starter
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Has anybody used the Kepich exhaust systems? If so, how is the fit? Are they a welded system or clamped? Front pipe, muffler, rear pipe, resonator all seperate? Really would like input from someone on who installed a 327-275 1966 system. Thanks!
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post #11 of 19 (permalink) Old 11-08-2009, 12:58 PM
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Be careful:

Many of the after market sellers do have exhaust that include resonators. However, the resonators don't even closely resemble the original ones. Please be careful and make sure you see a picture of what you will receive prior to ordering. Once you receive them and you may be very disappointed, it is very expensive to ship them back. I have seen many sets of NOS rear exhaust pipes with resonators at swap meets. If you are not sure what they should look like, let me know as I have NOS ones on my 1966.

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Last edited by fsc66; 11-08-2009 at 01:12 PM. Reason: adding pics
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post #12 of 19 (permalink) Old 11-08-2009, 01:15 PM
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Pics of resonators

I have attached a pic of what an NOS resonator looks like, addiAttachment 824

Attachment 825

Attachment 826tionally, I also attached 2 pics of what old aftermarket replacement resonators looked like.

Paul

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Last edited by fsc66; 02-15-2010 at 10:42 PM.
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post #13 of 19 (permalink) Old 11-09-2009, 08:24 AM Thread Starter
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Thanks for the photos. So, nos is the only way to get the original look? Are all reproduction suppliers like Waldron, Kepich, and catalog vendors like Classic Industries the same and not original looking? Finding nos the only way? It would seem very difficult to find nos.
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post #14 of 19 (permalink) Old 11-09-2009, 10:03 PM
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Dual Exhaust:

Checking with the Tech adviser from our 1965-66 Full Size Chevrolet Club.

Paul

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post #15 of 19 (permalink) Old 11-09-2009, 11:29 PM Thread Starter
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Thanks Paul.
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post #16 of 19 (permalink) Old 11-10-2009, 10:54 AM
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This is the Waldron system: Classic Industries and The Parts Place could/would not provide images. These resonators look pretty correct to me, but their system is pricey. When going totally correct you have to ask yourself if you want to use the original un-aluminized steel (if it's even available) when it will begin to rust immediately
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post #17 of 19 (permalink) Old 11-10-2009, 10:15 PM
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1966 Exhaust

I agree with Michael as did our Tech Advisor, Waldron's is about as close as you will get:

http://waldronexhaust.com/shop/produ...oducts_id=3453

Paul

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post #18 of 19 (permalink) Old 11-11-2009, 08:54 AM Thread Starter
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Thanks to everybody. I'll go with Waldron as soon as my piggy bank gets a little fuller!
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post #19 of 19 (permalink) Old 11-13-2009, 07:41 AM
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I received this reply from Kepich when I inquired about their resonators:

"I have never seen the resonator sold separately. It was orginally welded into the tailpipe from GM. I have a set from a low mileage car that I use as a pattern for over 30 years. As far as the grooves go, GM never made an exhaust system. They purchased them from a supplier, generally there were about 10 of them. As the car was assembled, it could have had one in a number of mufflers from these various suppliers. The ones with the grooves are AP brand, now merged with Goerlich & Maremont. I am surprised that ones with grooves came on the car, because GM would've specified that the muffler be numbered or stamped with a GM number. The grooved would've indicated AP, as the grooves are their trademark. Thanks, John"
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