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Old 04-21-2011, 11:28 AM   #1
Jive-Bomber
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Default Milestone Motor: The 1949 Cadillac 331



1949 was a very big year in the American automotive industry. It was really the first year that all the manufacturers had completely brand new product from post-War designs. Besides all new exterior styling from Detroit, with fenders integrated into ...

To read the rest of this blog entry from The Jalopy Journal, click here.
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Old 04-21-2011, 11:37 AM   #2
schwerko
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Default Re: Milestone Motor: The 1949 Cadillac 331

Good read, thanks.
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Old 04-21-2011, 12:07 PM   #3
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Default Re: Milestone Motor: The 1949 Cadillac 331

Very kool and pretty damned accurate. Those "monkey motion" engines from Cadillac, and also Oldsmobile, clearly led the charge of doom to our beloved Flatty. Thanks for the story.
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Old 04-21-2011, 12:10 PM   #4
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Default Re: Milestone Motor: The 1949 Cadillac 331

What is monkey motion?
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Old 04-21-2011, 12:21 PM   #5
49ratfink
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Default Re: Milestone Motor: The 1949 Cadillac 331

got to love the Caddy motors. I'll take a later 390 with factory dual 4bbls and the big funky air cleaner.

can a person tell the difference between a 390 and the earlier models from the outside?
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Old 04-21-2011, 01:22 PM   #6
SAVAGE
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Default Re: Milestone Motor: The 1949 Cadillac 331

Thats What i'm talking about!!! Hope I can get mine in my Merc SOON!!
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Old 04-21-2011, 01:30 PM   #7
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Default Re: Milestone Motor: The 1949 Cadillac 331

Quote:
Originally Posted by Jive-Bomber View Post


1949 was a very big year in the American automotive industry. It was really the first year that all the manufacturers had completely brand new product from post-War designs. Besides all new exterior styling from Detroit, with fenders integrated into ...

To read the rest of this blog entry from The Jalopy Journal, click here.

Wow dude,
I read your title and my brain thought it said Mill stone not mile stone. I was gonna say I thought the Caddy was a pretty sweet mill and not a stone in any sense.

Pretty good read. Excellent motors.
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Old 04-21-2011, 01:31 PM   #8
batt69nova
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Default Re: Milestone Motor: The 1949 Cadillac 331

Great article. I've read a lot online about the early OHVs, and there's a bunch of articles saying Olds was first. Anyone have more info regarding that? I know Caddy was working on the OHV prewar, if memory serves, but I have read multiple accounts saying that Olds engineers had running motors prior to Cad.

??

Last edited by batt69nova; 04-21-2011 at 01:32 PM. Reason: spelling correction
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Old 04-21-2011, 01:35 PM   #9
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Default Re: Milestone Motor: The 1949 Cadillac 331

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Originally Posted by 49ratfink View Post
can a person tell the difference between a 390 and the earlier models from the outside?
The 49-54 331's had the extended bell housing cast on the rear of the block. Valve covers changed over the years(as you know they can all be interchanged, except for the early 49 which had center bolt covers). 56 was the first year of the dual quad setup option and I think 59 was the first year of the 3x2 setup option. Also 390's have a spin on oil filter, 331's and 365's have remote filters.
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Old 04-21-2011, 01:35 PM   #10
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Default Re: Milestone Motor: The 1949 Cadillac 331

LOVE CAD V8'S. I just sold my 365 Eldo engine but at least a few friends are building some really nasty 331's and 365's right now at our shop. Terd's is even Pink!
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Old 04-21-2011, 02:07 PM   #11
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Default Re: Milestone Motor: The 1949 Cadillac 331

I really love this thread

Here was my 365 56 cad engine ,was going like hell but a little bit thirsty
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Old 04-21-2011, 02:13 PM   #12
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Default Re: Milestone Motor: The 1949 Cadillac 331

The 331-390 intakes can even be used on the 1963 390 and the 1964+ 429. The spacing is the same, all you need is adapters to make up for the width of the latter.

~Jason
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Old 04-21-2011, 02:26 PM   #13
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Default Re: Milestone Motor: The 1949 Cadillac 331

I have a 331 that came out of a fully restored '49 in my shop, waiting to go in my 39 Merc coupe.
Charlie Price (vintagespeed.com) now offers the Offenhauser 2x2 intakes for $349 so that's what will go on mine eventually.
Still looking for a flywheel;-)
Let me know if anybody needs a fully rebuilt Hydro from my '49.
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Old 04-21-2011, 04:15 PM   #14
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Default Re: Milestone Motor: The 1949 Cadillac 331

Very good read. I didn't know about the intakes fitting 429's, good to know.
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Old 04-21-2011, 04:17 PM   #15
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Default Re: Milestone Motor: The 1949 Cadillac 331

Hell yeah it is. When you have a 429, you're the red-headed stepchild. You take what you can get! LOL!

~Jason

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Very good read. I didn't know about the intakes fitting 429's, good to know.
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Old 04-21-2011, 05:07 PM   #16
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Default Re: Milestone Motor: The 1949 Cadillac 331

Interesting stuff!
I drove my Grand-dad's 49 Caddy four-door when I was in high school. That sucker was fast, once it got rolling!
In 1950, a big-ass stock Cadillac finished 10th at LeMans!
Right behind it was a special-bodied Caddy.
A Cad-powered Allard kicked some exotic European butt, placing third overall, I think, in the race.
Great engine!
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Old 04-21-2011, 07:19 PM   #17
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Default Re: Milestone Motor: The 1949 Cadillac 331

The '51 I used to own seemed to have adequate power to get the car going. It was only rated at 160 hp but the 312 ft lbs of torque made up for it. It only had a 2 bbl carb and single exhaust. It was by far the smoothest running V8 I've ever seen and it ran like a Swiss watch.
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Old 04-21-2011, 07:47 PM   #18
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Default Re: Milestone Motor: The 1949 Cadillac 331

Quote:
Originally Posted by swissmike View Post
Still looking for a flywheel;-)
Try Mac's Speed in New Zealand

Run by Graeme McNeill

Posts stuff all over the world.

http://www.macsspeed.com/adapters_3.html

I don't work for Graeme but have bought bits from his establishment and he's super helpful.

CM
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Old 04-21-2011, 08:08 PM   #19
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Talking Re: Milestone Motor: The 1949 Cadillac 331

Quote:
Originally Posted by Jive-Bomber View Post


1949 was a very big year in the American automotive industry. It was really the first year that all the manufacturers had completely brand new product from post-War designs. Besides all new exterior styling from Detroit, with fenders integrated into ...

To read the rest of this blog entry from The Jalopy Journal, click here.
Was surprised and flattered to see that you choose to use one of my Caddy engines, in your pics, #4. Here area couple of pics of how it currently looks, will be back in the Deuce Roadster shortly! (I hope)
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Old 04-21-2011, 08:14 PM   #20
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Default Re: Milestone Motor: The 1949 Cadillac 331

Caddy engines rule! I have a 331 going in my Model A. I can't wait to start working on it!
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