mufflers, corvette?? what year??

[Twan B.]

When I was replacing my exhaust system a found a few numbers on the mufflers.
I don't want to throw them away, because I don't know where they are used for, it maybe Corvette????
The # are on both mufflers the same and in lenght 14", I will try to put some photo's on the site:

17711
12 417

[Twan B.]

Re: mufflers, corvette?? what year??

corvette onderkant 012.jpg

corvette onderkant 011.jpg

corvette onderkant 014.jpg

Some pics.

Twan
#44079
Dutch Chapter.

[Edward J.]

Re: mufflers, corvette?? what year??

Twan, I believe what you have are after market mufflers those numbers don't look like GM part no.s.

[Joe L.]

Re: mufflers, corvette?? what year??

[ATTACH]22471[/ATTACH]

[ATTACH]22472[/ATTACH]

[ATTACH]22473[/ATTACH]

Some pics.

Twan
#44079
Dutch Chapter.

Twan------


Sometimes, number sequences like seen here do appear on GM mufflers. However, I believe they are numbers which relate to the actual manufacturer of the mufflers (ie. Walker or Arvin) and not to any GM part number.

In any event, these do not appear to me to be GM mufflers, at all. For one thing, they have a "rube goldberg" sort of muffler brackets. This may have been done to adapt C3 style muffler brackets to a C2 application. It may also be that the welded-on brackets that came on the mufflers were for some other, non-Corvette application and had to have other brackets welded-on in the field.

The muffler outlet pipes are shorter and/or differently configured than any GM muffler I have seen for any 63-82 application.

The forward pipes do not appear to me to be GM pipes, PRODUCTION or SERVICE. The long pipe seen behind the forward pipes is DEFINITELY not a GM piece for any Corvette application.

By the way, from what little I can see of them in the bottom photo, the muffler INLET pipes welded to the mufflers do look like they could be original GM pieces. If so, someone removed the original mufflers and welded the replacement mufflers on in the original configuration.

I strongly suspect that the mufflers, themselves, are a generic, aftermarket piece.

[Wayne M.]

Re: mufflers, corvette?? what year??

Twan -- here's a few pics of '64-7 service N11 exhausts from the early '80s to show markings. # ...735 is LH; '736 is RH side.

GM is more "oval". Yours are more flat on opposing surfaces, IMO.

[Twan B.]

Re: mufflers, corvette?? what year??

Thanks,

Now I know it's not a GM part.
I'am going to throw it away.

Twan
#44079
dutch chapter

[Joe L.]

Re: mufflers, corvette?? what year??

Thanks,

Now I know it's not a GM part.
I'am going to throw it away.

Twan
#44079
dutch chapter

Twan------


I think you can safely do that and not need to look back. However, I think I would save the pipes welded to the front of the mufflers. As I mentioned, from what I could see of them, they look like they could be original pieces.

Why the forward pipes were, apparently, replaced, I have no idea. Usually, those are the most long-lived pipes on the car.

[Twan B.]

Re: mufflers, corvette?? what year??

Thanks Joe,

Twan