1972 454 exhaust system [Archive] - Chevelle Tech

: 1972 454 exhaust system


fatrat720
Apr 4th, 07, 10:27 AM
Does anybody make resonators for dual exhaust system Chevelles for the 1970-1972 era? I think the origional numbers for the tail pipes was 3973857 & 3973858. Not sure if the tail pipe was welded on and came as one unit or not. The resonators were shaped like a small bullet style straight-through muffler and were not canister shaped. I have herd that Corvair mufflers will work, but don't know for sure.
Any information would be appreciated. Thanks Fatrat720

Mike72ss
Apr 4th, 07, 10:58 AM
Bob, many places including our sponsor Ground Up sells dual exhaust systems with resonators.

If you have deep pockets, Gardner exhaust sells the best.

Mike

DN
Apr 4th, 07, 11:00 AM
Gardner Exhaust for sure, but entire systems only. Don't know about resonators only.

fatrat720
Apr 4th, 07, 2:45 PM
I checked with GroundUP on-line, they do not offer resonators for a 1972 454.
Thanks

alss
Apr 4th, 07, 3:06 PM
I am not sure if 72 used a resonator or not..but if they did Gardener has the system. Absolutely perfect factory correct systems. Not cheap, but very very nice!!! I have used three systems on my own cars and have one now for another perseon who has their car in my shop.

http://www.gardnerexhaust.com/homepage.html

edit: I checked ....and resonators on 70-72 Chevelles

Junkyard Dawg
Apr 5th, 07, 5:59 AM
Is it possible to "make" your own resonators by getting a pair of the dynomax bullet glass pack style mufflers and putting them at the near end of the tail pipe?

SSuper Dave
Apr 5th, 07, 7:34 AM
My muffler guy used small glasspack type mufflers as resonators on my '68 Caprice. I duplicated the exhaust using a pic from the assy manual and it looks perfect, sounds good too.

Junkyard Dawg
Apr 5th, 07, 11:52 AM
I know once I got annoyed at my droning Flowmaster so I shoved an old glass pack in the end of it....it really shut it up....