1968 442 Post Coupe

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Old Apr 13, 2026 | 05:21 PM
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1968 442 Post Coupe

Hello there! I'm in the process of restoring my 1968 442 Post Coupe with my Grandfathers. They where both mechanics and have been helping me but neither of them have done anything other than this project for over a decade. I bought the car almost exactly a year ago. The project started as "I'm going to tune her up and replace the cracked windshield" but it turned into "He used rivets and bondo to fix the rusted package tray!? I wonder where else he did that." Since then there has been just about every possible "While I'm here I might as well..." Now all I have are parts and I figured it qualified as a major build. I have been asking so many questions along the way I wanted to start a new thread here to keep it a little more organized. Thank you for stopping by and for any advice you may give me! Below should be some picture from the build up until now.
Old Apr 13, 2026 | 05:30 PM
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Old Apr 13, 2026 | 05:32 PM
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Old Apr 13, 2026 | 05:37 PM
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My first question is about the camshaft. I don't know if you saw in the pictures but the engine had j heads on it. I have a set of C heads that I want to put on but before I do I have to get them cleaned up at a machine shop and they need to know what cam is in the engine. I assume that it is original because it didn't sound like it had a cam when it ran but I want to know for sure. Is there anyway for me to determine if it is original or not without taking out the camshaft?
Old Apr 13, 2026 | 07:03 PM
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I think your frame is toast. But you should be able to find a replacement. The body isn't too bad.
Old Apr 13, 2026 | 07:23 PM
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Tony, on ID'ing the cam (if it's factory), do you have an Olds chassis service manual? There is a page in it, that shows the cam end, with shapes cut - the shape or contour is an identifier of the cam.
Old Apr 14, 2026 | 05:22 AM
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That's a big project.

If you're interested in reinstalling the W36 finder stripe correctly, here's the drawing. It requires moving the emblems


Old Apr 14, 2026 | 05:50 PM
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Originally Posted by 2qwk4u442
Tony, on ID'ing the cam (if it's factory), do you have an Olds chassis service manual? There is a page in it, that shows the cam end, with shapes cut - the shape or contour is an identifier of the cam.
I thought I had the manual but it turns out its the body service manual. Do you know where I could pick one up? From what I remember its better to get an old one rather than a reproduction, right? In the mean time would I be able to trouble you for a picture of the page?
Old Apr 14, 2026 | 05:53 PM
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Originally Posted by allyolds68
That's a big project.

If you're interested in reinstalling the W36 finder stripe correctly, here's the drawing. It requires moving the emblems
Thank you!! I do plan on putting the stripe back so the diagram is a big help. I think its safe to say I have some time though.
Old Apr 14, 2026 | 06:03 PM
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Originally Posted by oldcutlass
I think your frame is toast. But you should be able to find a replacement. The body isn't too bad.
My plan was to try and fix the frame. Cut out the rusted spots, weld in a patch panel, and then paint with rust inhibitor. I was also toying with the idea of putting in a plate to box the frame. If I did this I would set the plate a little further back to create a recess to run the fuel and brake lines so that they are accessible but not hanging out of the frame.

[Edit] First I'm going to sandblast it. My plan might change if it disappears while I'm blasting.

Last edited by Tony4-4-2; Apr 14, 2026 at 06:09 PM.
Old Apr 15, 2026 | 08:24 AM
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I think you're a little out over your skis, Tony. Put me in the "replace frame" camp. I don't know that structural integrity can ever be restored to the one you have with welded patches. I'm not even sure I'd spend the money or effort sandblasting it.

Anyway, before you concern yourself with mechanical/cosmetic stuff, put a plan together for frame and body. That's the most important place to start.
Old Apr 15, 2026 | 08:45 AM
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Originally Posted by Tony4-4-2
My plan was to try and fix the frame. Cut out the rusted spots, weld in a patch panel, and then paint with rust inhibitor. I was also toying with the idea of putting in a plate to box the frame. If I did this I would set the plate a little further back to create a recess to run the fuel and brake lines so that they are accessible but not hanging out of the frame.

[Edit] First I'm going to sandblast it. My plan might change if it disappears while I'm blasting.
Save yourself some time and take a 3lb hammer and start beating on it.
Old Apr 15, 2026 | 02:35 PM
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Tony, this is the page I was remembering from the Chassis service manual. It is section 6B (engine) page 25, so 6B-25. However I don't know that it's going to be very helpful.
And for what it's worth I agree with others- man that frame is smoked, to far gone. Just my opinion, but I think you need to find another frame.


Old Apr 15, 2026 | 02:54 PM
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442

I think you’ve got a great project there. Wish you luck on knocking it out.
Old Apr 15, 2026 | 05:52 PM
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That frame is junk. It’s gonna look even worse after blasting it.
Old Yesterday | 04:25 PM
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Originally Posted by 2qwk4u442
Tony, this is the page I was remembering from the Chassis service manual. It is section 6B (engine) page 25, so 6B-25. However I don't know that it's going to be very helpful.
And for what it's worth I agree with others- man that frame is smoked, to far gone. Just my opinion, but I think you need to find another frame.

So I took the timing cover off and that didnt really help. Is there anything from these pictures that would help identify if the cam is original? I dont want to take the cam gear off.
(Edit) I was able to get a caliper around the cam from the bottom and the best measurement I could get was 1.732 inches. I dont know if that helps at all.




Last edited by Tony4-4-2; Yesterday at 06:02 PM.
Old Yesterday | 04:30 PM
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I also dropped the pan today and ran a magnet through the little oil that was left. Everything was perfectly fine except for this little present I found. I dont know where they came from. The engine ran perfect before I started taking it apart. Any ideas?
Old Yesterday | 04:35 PM
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I found this tag on the bottom of the oil pump. Does it mean anything?
Old Yesterday | 06:44 PM
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Originally Posted by Tony4-4-2
I also dropped the pan today and ran a magnet through the little oil that was left. Everything was perfectly fine except for this little present I found. I dont know where they came from. The engine ran perfect before I started taking it apart. Any ideas?
Those look like the clip that retains the oil pump drive rod.
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