Thrush Tin Can muffler info?
 

Did they ever come in 2.5 inch inlet/outlet? I'd love to find a pair, but they rarely come up for sale, and never in that size. They'd be for the Camaro. I don't want to go bigger on the exhaust, and I'm definitely not reducing it. I figure this can also serve as a general discussion thread for these. Also, I'm aware of the Cherry Bomb Hot Rod mufflers. They don't come in 2.5 unfortunately.

1976 Thrush Catalog
 

Does this help any? Ask if you need any info

Dave
67 Nova Boy


https://photos.app.goo.gl/Tu9hjpx5JbUnfWqR7

https://photos.app.goo.gl/ypJmDhPdxih8TWak6

https://photos.app.goo.gl/eto4PZuHyFDDVXXc8

https://photos.app.goo.gl/jfhWKpiYsnaALkbj6

https://photos.app.goo.gl/JEiRchBnpwF8XPKm6

https://photos.app.goo.gl/5ACz8vARLkt1b8uJA

https://photos.app.goo.gl/yL9SiPM6biBGq2ud8

Interesting. I see one with a 2 1/2 inlet but a 2 1/4 inch outlet, and that's as big as they got . That's a bit of a bummer. Thanks.

I wonder if they made them in bigger sizes later on? I don't know when they quit producing them but I'd imagine they had to have made them larger eventually, as exhaust systems got bigger.

OR WAIT. Am I reading it wrong? I didn't take OD vs ID into account. Looks like I'm measuring tail pipes tomorrow. I know I'm wrong about *something* here.

Hell, just ignore my rambling lol

I've got a single 2.5", not positive it isn't od in and id out......it's up in the attic and can't check right now. I've been searching for a mate for it for maybe 3 years????

I have a set that are 2 1/4 on one end and 2 3/4 on the other and 35 inches long overall

I have a Gratiot Auto Supply catalog but I can’t find it at the moment. I had this on a winter beater. I kept the ad. Not what your looking for but it’s Thrush

Alright, measured the pipes on the car. 2.25" ID, 2.5" OD

I bought a set of 2 1/2 in 2 1/2 out in 1985 from a local shop , he had them in stock I used them till late 86 and had to replace them after going through a state police road block and receiving a ticket for being too loud 😳. We had several cars in town with them the best sounding one was a 340 duster with w2 heads and .590 solid lifter cam it sounded like it was gonna blow the mufflers off😀

Btw, don't waste your money on current day Hush Thrush mufflers. They are now made by Dyno Max, sound totally different from the original Hush Thrush and are also restrictive !

Wasn't planning on it! I want the old school round ones.

'

Here's a couple links to some old style round ones currently for sale on Kijiji Canada.
First one's used also stamped 3154, is there a # on the one you have?
Second link is an NOS pair of 4243's w/ # listing on box end as pic below but 3154 not listed?:hmmm:
~ Pete

https://www.kijiji.ca/v-other-auto-p...rod/1445312066

https://www.kijiji.ca/v-engines-and-...ers/1266852181

.

I now have my answer for certain. Hot Rod's October 1973 muffler test lists a 2.5 inch diameter round Thrush muffler. Now if only I could find a pair for sale that I can afford....

https://i.imgur.com/BvQyPBm.jpg