Will a purpose made dual exhaust for a '67 C body work on a '66?

Gerald Morris

Gerald Morris

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Greetings All,

Got a nice discount offer from an ePay vendor on the following:

1967 CHRYSLER NEW YORKER, NEWPORT & 300 DUAL EXHAUST SYSTEM, ALUMINIZED | eBay

Before I bite, I want to know if this can be put on my '66 Newport sans B.S. issues. I like Waldron myself, but if this stuff is decent, I may go for it. Waldron has an 8 week wait time. Not that I'm jumping to sweat in Sonoran desert heat just now but....
 
I personally don't see why it would not work. The 67 & 68 are essentially the same car underneath.

Others can confirm or refute this but I'm 99% sure it should.
 
It will fit.
65-73 underneath are the same for the most part regarding the exhaust..
For example TTi sells systems that fit those years.
 
I thank you for your thought, but Mathilda is a 1966 Newport. While these appear to have the MOST in common with the 1965 models, I know that small stuff like the engine insulators (mounts) differ quite a bit between these years. To wit: I want to be SURE as a reasonable adult can be that these bits of metal tubing should fit under old Tilly's belly before dropping ~$5C on such.

Thanks again,

Gerald
 
cbarge said:
It will fit.
65-73 underneath are the same for the most part regarding the exhaust..
For example TTi sells systems that fit those years.
Click to expand...

AHHH! THAT was the sort of authoritative datum I sought.

Much obliged.
 
Appears you bought those but do believe there could be issues with the front pipes. True 67 duals use HP manifolds which are 2-1/2" vs. 2-1/4" on 66 & earlier. There are also differences in attachment position & height depending on whether engine is B or RB. Accurate Exhaust requires that you specify exactly the engine & exhaust manifolds you are using before they will build a system.
 
PH27L7 said:
Appears you bought those but do believe there could be issues with the front pipes. True 67 duals use HP manifolds which are 2-1/2" vs. 2-1/4" on 66 & earlier. There are also differences in attachment position & height depending on whether engine is B or RB. Accurate Exhaust requires that you specify exactly the engine & exhaust manifolds you are using before they will build a system.
Click to expand...
Bingo.
 
While tti lists the same system, 65-73, when comes to purchase time they ask some very specific questions regarding YOM. They are the only definitive suppliers I know of. Worth the extra few dollars IMHO.
 
bluefury361 said:
While tti lists the same system, 65-73, when comes to purchase time they ask some very specific questions regarding YOM. They are the only definitive suppliers I know of. Worth the extra few dollars IMHO.
Click to expand...
The hear pipes are the only wild card, the rest of the system will fit the years listed, you just take a little out if your car has the shorter wheelbase.

With the headers, I removed some from the intermediate pipes, and from the tail pipes. With log manifolds, I just removed a little from the tail pipes.
 
In the old Walker Exhaust catalog, the head pipes are different between the B and RB motors, HP or not. Even the y-pipes on the single exhaust systems. Different nuances in the bends for the RB heads' slightly different location in comparison to the B engine. Even with the same style exhaust manifolds.

The '66 Chrysler wheelbase should be the same as the '65-'73 Chryslers, but not the wagons, which all use the 122" wheelbase.

Walker Exhaust might still sell the OEM-style hangers? The one over the rear axle is probably the same for either side. But the rear hangers by the rear springs will be side-specific. The hangers are illustrated in the back of the catalog. Might be some good illustrations in the '66 or '67 Chrysler parts books?

DO verify which manifold (casting numbers) the proposed system mates to.

Enjoy!
CBODY67
 
LocuMob said:
The hear pipes are the only wild card, the rest of the system will fit the years listed, you just take a little out if your car has the shorter wheelbase.

With the headers, I removed some from the intermediate pipes, and from the tail pipes. With log manifolds, I just removed a little from the tail pipes.
Click to expand...

I have the log manifolds, though I know where some HP manifolds can be had, if I can make the owner see Reason on price. Folks get fond of those things. FWIW, I've thought maybe shorty headers would be better.... but not just yet.
 
CBODY67 said:
In the old Walker Exhaust catalog, the head pipes are different between the B and RB motors, HP or not. Even the y-pipes on the single exhaust systems. Different nuances in the bends for the RB heads' slightly different location in comparison to the B engine. Even with the same style exhaust manifolds.

The '66 Chrysler wheelbase should be the same as the '65-'73 Chryslers, but not the wagons, which all use the 122" wheelbase.

Walker Exhaust might still sell the OEM-style hangers? The one over the rear axle is probably the same for either side. But the rear hangers by the rear springs will be side-specific. The hangers are illustrated in the back of the catalog. Might be some good illustrations in the '66 or '67 Chrysler parts books?

DO verify which manifold (casting numbers) the proposed system mates to.

Enjoy!
CBODY67
Click to expand...

Yah, I shall get the casting #s off my logs. Their lead time is about 5 weeks. I wonder where the current single pipe setup came from. I've held this on with plumbing straps and copper wire ever since I bought old Tilly. The pipe is broken right behind the Y, and I make a new aluminum sleeve from flashing about once annually, then use half a dozen hose clamps to secure this. It works amazingly well, until the combined heat from each manifold eventually burns a hole in the aluminum. That break has been welded numerous times, and it simply won't permit such any longer.

Despite the extreme decrepitude of this setup, it has conducted the exhaust gasses to the rear decently for over 4 years of daily driving. Still, I'll be MUCH happier to get new pipe under this car, and with a bit more cross section to allow the exhaust gasses to leave the engine.

Heads will come next. Looking for 915s, and know of one VERY DECENT fellow from this forum who may well supply the cores. I'll ask for advice on valve work and all when things precipitate a bit in that direction. I've thought of getting a valve seat grinder, but MY how proud folks have become of such old tools!
 
In the '66 Parts Book, dual exhaust doesn't discriminate between 383 and 440, they use the same pipes.

IMG_20200612_164344.jpg


IMG_20200612_163115.jpg


IMG_20200612_162930.jpg
 
i tried to use a 68 chrysler system with 68 hp manfolds on 66. middle pipes were wrong
 
My advice is to find a shop that build customs exhausts. I've done it on a few of my cars. $2-300 bucks and your out the door.

You can spend $500 on this set and a few afternoons swearing at it, and it still won't be right.

Just mho.
 
78Brougham said:
My advice is to find a shop that build customs exhausts. I've done it on a few of my cars. $2-300 bucks and your out the door.

You can spend $500 on this set and a few afternoons swearing at it, and it still won't be right.

Just mho.
Click to expand...
Or spend a little more and start after breakfast, and be driving by lunch.
 
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