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Oldsmobile W-43 Engine

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Old Feb 25, 2022 | 09:01 AM
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Oldsmobile W-43 Engine

This may be of interest. Does anyone have this engine?

https://www.macsmotorcitygarage.com/the-w-43-saga-oldsmobiles-experimental-32-valve-455-v8/
Old Feb 25, 2022 | 11:07 AM
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Link doesn't work (surprise surprise) but the RE Olds Museum in Lansing had a carbureted Hemi-Olds mounted in a 1971 A chassis. Not sure if anyone has the injected one. The fuel injected one supposedly broke Oldsmobile's engine dyno and was still pulling.
Old Feb 25, 2022 | 11:21 AM
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Hopefully one of our moderators can fix it he link.
Old Feb 25, 2022 | 11:50 AM
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Try this
https://www.macsmotorcitygarage.com/...v8/#more-89390

The complete W43 is still in the REO Museum in Lansing.

The partial W43 was supposedly bought by one of the Inline Tube brothers
Old Feb 25, 2022 | 01:26 PM
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Someone "discovers" the W43 every six months or so. I still have the May 1971 issue of Hot Rod that first broke the story. Here's a copy of the article.






Old Feb 25, 2022 | 01:30 PM
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Originally Posted by joe_padavano
Someone "discovers" the W43 every six months or so. I still have the May 1971 issue of Hot Rod that first broke the story. Here's a copy of the article.




You seem slightly sarcastic in your response....lol Thanks!!
Old Feb 25, 2022 | 01:50 PM
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Originally Posted by twilightblue28A
You seem slightly sarcastic in your response....lol Thanks!!
Joe sarcastic? Never...lol
Old Feb 25, 2022 | 01:52 PM
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Originally Posted by twilightblue28A
You seem slightly sarcastic in your response....lol Thanks!!
Actually for once not.
Simply stating a fact.
Old Feb 25, 2022 | 06:37 PM
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Anyone happen to know if that Quad is original to the engine?? Would be curious to know if they used a production piece.
Old Feb 25, 2022 | 07:54 PM
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Lol. Interesting. The complete engine was in my garage for 6 months. I bought it from an Oldsmobile engineer in 1996. I sent it to Ken Reese (now deceased) to put in the chassis for the 100th anniversary. It never left the museum after the 100th. Here's a pic when we delivered it.



Old Feb 25, 2022 | 07:58 PM
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Wondering if it was so great on the dyno.
...why was it never produced in the after market
Old Feb 25, 2022 | 08:36 PM
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Originally Posted by truckman5000
Wondering if it was so great on the dyno.
...why was it never produced in the after market
Aftermarket probably can't justify it. With a Qjet it supposedly made 650hp @ 6500 rpm
Old Feb 25, 2022 | 08:39 PM
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Originally Posted by truckman5000
Wondering if it was so great on the dyno.
...why was it never produced in the after market
My guess is because the mighty hammer on emissions etc came down hard after 1970.
Old Feb 25, 2022 | 08:41 PM
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Originally Posted by no1oldsfan
My guess is because the mighty hammer on emissions etc came down hard after 1970.
That is exactly why the factory never took it any further.
Old Feb 25, 2022 | 08:49 PM
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Originally Posted by 66SportCoupe
Lol. Interesting. The complete engine was in my garage for 6 months. I bought it from an Oldsmobile engineer in 1996. I sent it to Ken Reese (now deceased) to put in the chassis for the 100th anniversary. It never left the museum after the 100th. Here's a pic when we delivered it.


That is so super cool. What a kick **** piece of Oldsmobile history. Oldsmobile motors pulled harder than non Oldsmobile people thought. Oldsmobile built that motor to take on the Hemi. And they did it right. Too bad it didn't go further.
Old Feb 25, 2022 | 08:56 PM
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At the time I had a 71 W30 4 spd that needed an engine. I thought hard about putting it in there but if something broke what would you do then?
Old Feb 25, 2022 | 09:25 PM
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Did you ever hear it run?
Old Feb 25, 2022 | 09:26 PM
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Originally Posted by no1oldsfan
Did you ever hear it run?
Unfortunately no I did not. That is the one thing that really sucked about having it.
Old Feb 25, 2022 | 09:28 PM
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However my Olds buddies drooled over it having beers and a 66 and 67 W30 sitting in the garage too. Lol
Old Feb 25, 2022 | 09:30 PM
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That is simply one big, bad, beautiful motor. What could have been.
Old Feb 25, 2022 | 09:42 PM
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It is dieing to be ran. That motor in an actual car would be fun as hell.
Old Feb 26, 2022 | 04:20 AM
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I thought it was more well known but one of these will be running soon from what I understood from a Facebook post
Old Feb 26, 2022 | 05:48 AM
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Originally Posted by no1oldsfan
My guess is because the mighty hammer on emissions etc came down hard after 1970.
Which is exactly what you'd have read in the article from May 1971.
Old Feb 26, 2022 | 04:04 PM
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That's where I read it.
Old Feb 27, 2022 | 06:36 AM
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Lot of things conspired against full production of the Hemi-Olds. Development was far enough along that the intent was to put it in 1970 Toronado and then in the A cars in 1971.

Emissions and GM intramural politics unfortunately did it in. Hemi engines by design make tons of horsepower but they tend toward inefficient and are tough to clean up (why Chrysler abandoned them in 72). Plus a 650 horsepower Oldsmobile would have been a challenger to Corvette and in GM culture that just couldn't happen. Think how Buick got mauled in the 80s for building Turbo Regals that spanked Corvette ***.

Re aftermarket: not enough demand for the heads and induction for anyone to produce such expensive pieces.
Old Feb 27, 2022 | 10:38 AM
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Originally Posted by rocketraider
Lot of things conspired against full production of the Hemi-Olds. Development was far enough along that the intent was to put it in 1970 Toronado and then in the A cars in 1971.

Re aftermarket: not enough demand for the heads and induction for anyone to produce such expensive pieces.
The block was different, also, so quite an expensive undertaking for the aftermarket to get involved.
Old Dec 6, 2023 | 12:37 PM
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Originally Posted by 66SportCoupe
Lol. Interesting. The complete engine was in my garage for 6 months. I bought it from an Oldsmobile engineer in 1996. I sent it to Ken Reese (now deceased) to put in the chassis for the 100th anniversary. It never left the museum after the 100th. Here's a pic when we delivered it.


Where is this museum? Did you ever have any blue prints or technical info on this engine. I would love to recreate it !
Old Dec 6, 2023 | 04:46 PM
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whoever had this in one piece, full and compete , without doing everything in their power to run it or dyno it should be ashamed of themselves.

it’s like taking your poodle to the dog show…and not letting it bark.

anyone who says they wouldn’t run out of fear of it blowing up and not being fixable,,is an absolute idiot
Old Dec 7, 2023 | 03:57 AM
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I guess Oldsmobile made a 4 bolt main cap engine after all. Almost as rare as the SMW 403 used in station wagons.
Old Dec 7, 2023 | 04:49 AM
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Originally Posted by Olds64
I guess Oldsmobile made a 4 bolt main cap engine after all. Almost as rare as the SMW 403 used in station wagons.
Well, there's also this one.



Old Dec 7, 2023 | 07:01 AM
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Here's is a cleaner looking one. And almost ready to go.








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