Poly 318

[Anne]

I may need a left side exhaust manifold. From my research there appear to be 3 or more versions used by Chrysler all with different outlets. Can anybody tell me what model Chrysler/Dodge car was this engine original to?
This may make it easier to source one.
Thanks,

Anne

[guymd]

I bought a used exhaust manifold for a 410 many years ago, and I may actually have the broken one with a casting number on it. Perhaps that would help identify it even if the casting numbers are different from time to time. Also, I seem to remember that we decided the engine was Plymouth, the less expensive half of Chrysler at the time.
I hope this helps a bit.
I'm away now, but I'll be back home in 3 days, and will make a note to send you a picture of the old manifold if I can.

- Sandy

[Anne]

Thanks...knowing that it's a Plymouth is a start....an area to check.

Anne

[Kevin H]

Dodge Dart, Plymouth Fury, Belvedere/Mayfair all from circa 1955-60, possibly a bit later, particularly in Canada.

Although some models of these cars used the 313/318 engine, the outlet from the manifold exited at the centre or rear depending on body type. Not sure whether the length of the outlet also may have varied.

Here's a lengthy discussion on the topic!

http://www.bristolcars.info/forums/8...-manifold.html

One of the manifolds on the Bristol incorporates a heat control valve. I think it is the left hand one, but it depends on which way you are looking at the car!

[Anne]

Well thanks for the links.
Basically no further ahead. The left side Exhaust manifold exits at the rear, however there are 3 or more style of exit flanges, and exit curvature so it is important to know what cars they came from. Chrysler produced many different cars with a poly 318 and knowing what manifold went were is important when sourcing one.

Anne

[Kevin H]

The only way you are going to know with absolute certainty is by finding out what casting numbers were used on the Bristol cars. Given that you have a car with the manifolds on, you are in a position to acquire those numbers :-)

[Anne]

Don't see how that casting numbers help or maybe by chance?
I have 2 left manifoldsne is useless as badly broken at the end. The other one I am using but it's cracked...will get it welded this winter.
The numbers are: 2658381 and 22881901. No similarity and even the quantity of numbers is different.
So both numbers would work but that is not the way people in North America work. They would want info such as: 1963 Valiant as in a specific car, and Sandy mentioned Plymouth but there are several versions of Plymouths as in Fury, Belvedere, Valiant and Barracuda...maybe others. Knowing which one is the information I need or for that matter many of us do.

Anne

[MYTA21]

Hello Anne, From what I've heard the manifold differs from the MOPAR cars the engines were fitted to. I had a spare LH manifold until February this year until I loaned it to a guy to help him out. I'm still struggling to get it back! ( There's lesson there somewhere!) You may be better looking for a top class specialist repair. There's guy in Birmingham, UK who sells a lot of bits Brian May?. Might be worth trying him

[Anne]

Thanks...yes I know Brian. I will get mine repaired and keep on the search for a good one and will then advise the group as to what model Chrysler it came from.
Anne

[Anne]

Some progress....
The left side manifold as used on "our" 318 is most definitely from a 1962 Plymouth Fury Canadian model. Just had a look at one and measured it and took pictures.
Don't know if the US version is the same and if other models are the same, but at least we have one definite source.

Anne

[Anne]

Managed to buy a nice Dodge Polara left side exhaust manifold, same as used on our cars. This was from the USA so there is no appreciable difference between Canadian and US. They call it a B body car...whatever that means??
$20.....the sort of price I like!

Anne

[Thor]

Well done Anne, this is really useful information for the longer term for all 407 to 410 owners. The poly 318 is worth the trouble it is a great engine !