C2 welded exhaust system help

[Jaime M.]

Can anyone tell me who is manufacturing the best fit C2 welded exhaust system? I am looking for 2 1/2" exhaust for my 64.
Jaime

[Michael G.]

Re: C2 welded exhaust system help

Jamie,

One company to avoid is Allen's Exhaust. Without going into great detail was sold an ill fitting, poorly manufactured system for my big block roadster. Allen's was contacted more than once and was given numerous reasons why their system wasn't the issue. "We've made these for many cars with no issues". Right......... Struggled to get system onto and fit under the car. Look elsewhere.

[Michael G.]

Re: C2 welded exhaust system help

In addition to a supplier suggestion, is plain carbon steel still available from anyone? If not, what's the best alternative for judging: magnetic stainless or aluminized?

[Dick W.]

Re: C2 welded exhaust system help

Jamie,

One company to avoid is Allen's Exhaust. Without going into great detail was sold an ill fitting, poorly manufactured system for my big block roadster. Allen's was contacted more than once and was given numerous reasons why their system wasn't the issue. "We've made these for many cars with no issues". Right......... Struggled to get system onto and fit under the car. Look elsewhere.

We installed several of Mike's systems and every one had to be tweaked, some more than others

[Russ S.]

Re: C2 welded exhaust system help

Carbon steel is available from corvette central.

[John H.]

Re: C2 welded exhaust system help

If not, what's the best alternative for judging: magnetic stainless or aluminized?

Mike -

The standard deduction for stainless is 50%, and it's 25% for aluminized (for parts that were not originally stainless or aluminized).

[Russ S.]

Re: C2 welded exhaust system help

Mike -

The standard deduction for stainless is 50%, and it's 25% for aluminized (for parts that were not originally stainless or aluminized).

John, What if any pieces of the exhaust were aluminized on C2 and C3?

[John H.]

Re: C2 welded exhaust system help

John, What if any pieces of the exhaust were aluminized on C2 and C3?

Russ -

Midyear exhaust pipes (front and rear) were plain carbon steel. Mufflers had aluminized outer covers; the end plates (heads) were stainless on the RH muffler and aluminized on the LH muffler.

Don't know about C3's.

[Michael F.]

Re: C2 welded exhaust system help

I am running CCentrals welded N-11 system. Excellent fit.

[Jaime M.]

Re: C2 welded exhaust system help

Thanks Everyone
I was thinking of going with The Corvette Central N11 welded system. Has anyone tried Paragons system?
Jaime

[Michael G.]

Re: C2 welded exhaust system help

Thanks John,

Both materials will likely make it until July without rust, if I keep the car inside my building. Unfortunately, when I drive that mile down to the National Convention, the condensation from sitting overnight in the lot at Novi is liable to turn either material light brown anyway.

I might as well get the plain carbon steel pipes and get full points with my rust.

[Paul O.]

Re: C2 welded exhaust system help

The judging of exhaust systems if done correctly is as follows:

1. 20% Configuration
2. 20% Date
3. 20% Finish
4. 20% Complete
5. 20% Installation

So if the config is correct but the Finish is aluminized where it should not be 20% deduct then the Date would be incorrect 20% then if it is Complete and Installed properly there would be a 40% deduct of the available points for that item.

Most systems I have judged from all aftermarket suppliers in general receive 40 to 60% deduction on pipes and mufflers due to Config, Finish and Date.

As far as Condition points if there is light surface rust on the pipes I would not deduct any points. If the rust is heavy and pitted that would merit a deduction.

Just my thoughts on this I judge Chassis on C3's. Hope my input helps.

Paul 18046

[Paul O.]

Re: C2 welded exhaust system help

Should have added Aluminized now has a standard deduction of 25% followed by any other issues that differ from the original systems.

Paul 18046

[Ron N.]

Re: C2 welded exhaust system help

Does anyone have current information regarding the correctness of the Gardner exhaust systems for 67 S/B -4 speed?

Ron

[Doug L.]

Re: C2 welded exhaust system help

I have been doing some research on a new exhaust system for my '64. Unfortunately it isn't possible to know how a system will fare in judging based on literature on manufacturer's websites. So I contacted one of the NCRS C-2 judges to ask his opinion on which is the most accurate reproduction system. His answer was "Gardner". I have not ordered a system yet so I can't offer first-hand information, but their website says many features are accurate reproductions of original systems. However they are aluminized and they are not 1-piece. The mufflers are separate from the exhaust pipe. Gardner says you can weld the mufflers to the pipes after installation, which I suppose is true. My guess is that in doing this you would end up with 2 welds at that junction (the existing weld attaching the muffler inlet pipe to the muffler, and the new weld to attach the exahaust pipe to the inlet). I think getting to this area to make good welds would be a little bit of a problem and probably costly, not to mention dangerous that close to the gas tank. Those problems (in my mind) are keeping me from ordering anything. I'm thinking of calling Gardner again and asking them if they will weld the pipes to the mufflers as a special order. Their comment at the time of my initial coversation with them implied that the reason they make them 2-piece was because it is easier / less expensive to ship when they are 2-piece. Even if they agreed to do the welding I would wonder if they have the proper jig to get the alignment correct. If their standard is to not weld, they are probably not set up to weld in the correct orientation.
Doug