Engine Build: 434ci SBO 350 built by Mark R.

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Old August 30th, 2020, 04:35 PM
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FYI I just got these chrome valve covers and they turned out really nice - OEM design w/ baffles, but just taller to clear the new rockers etc.

https://oldsrocketparts.com/index.ph...thers-350-455/
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Old August 30th, 2020, 08:20 PM
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Heh, having fun with brackets? I had too. Had to alter them a bit due to inreased height of valve covers. And until realising with assembly manual at hand that theres spacers here and there...
I ended up buying 1/2" valve cover spacers, and glueing them to head + using studs on valve cover rail from now on. Pondered too about those very same valve covers you linked. Good to hear theyre of good quality.
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Old October 7th, 2020, 07:07 AM
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Much progress so far - I'm starting to see the finish line!










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Old December 4th, 2020, 07:30 AM
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She's getting close!!!

Wrapping up the interior sound deadening and got the driveshaft delivered last night. Looks like its all the loose ends, wiring, plumbing, etc. and exhaust work. Can't wait!
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Old December 4th, 2020, 10:08 AM
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Glad to see your still moving forward.
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Old December 4th, 2020, 03:44 PM
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Originally Posted by oldcutlass
Glad to see your still moving forward.
Thanks, and me too.

Also, these gauges are sweet. You can configure them to switch from normal white light to show RED when items like temperature are not up to operating temperature so it yells at you to not go spirited before the car warms up, but also will flash RED when/if anything gets too hot (or oil pressure gets too low, etc.)

Plus they're just really nice and customizable - looks new but the same as the OEM gauge cluster from 1972. And they're electric full sweep.



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Old December 5th, 2020, 05:25 AM
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Looking great! Did the Gear vendors fit without doing any modifications to the floor pan?
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Old December 5th, 2020, 11:23 AM
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Originally Posted by 72GoldOlds350
Thanks, and me too.

Also, these gauges are sweet. You can configure them to switch from normal white light to show RED when items like temperature are not up to operating temperature so it yells at you to not go spirited before the car warms up, but also will flash RED when/if anything gets too hot (or oil pressure gets too low, etc.)

Plus they're just really nice and customizable - looks new but the same as the OEM gauge cluster from 1972. And they're electric full sweep.


What happened to the under dash CB radio? Did the seventies end?
All kidding aside awesome build. Any photos of the interior insulation install?
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Old December 5th, 2020, 11:39 PM
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Originally Posted by oldsmoboogie
Looking great! Did the Gear vendors fit without doing any modifications to the floor pan?
No, but not too much. Had to do some light massaging. To get it to work best we just made a custom trans crossmember.
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Old December 5th, 2020, 11:41 PM
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Originally Posted by Dynoking
What happened to the under dash CB radio? Did the seventies end?
All kidding aside awesome build. Any photos of the interior insulation install?
Haha, for real. My grandpa installed it back in the late 70s, and took it out sometime in the 90s. Kind of wish he didn't screw them into the dash like that but whatever, it's history, lol.

For some reason I don't think I took many photos of the interior portion but I know I have a few - I'll look for 'em!
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Old December 15th, 2020, 02:55 PM
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All drivetrain components are installed and ready to go.

I now have wiring, electrical/sensors, some plumbing, brake cables, etc. left. I'm getting excited at this point. I never thought this day would come.



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Old December 15th, 2020, 08:29 PM
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That has got to feel good!
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Old December 16th, 2020, 04:00 PM
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Sure does!

Exhaust is almost completed. We are going to polish the stainless steel from the tips all the way to the back of the rear axle since that portion is visible.










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Old December 16th, 2020, 04:14 PM
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That looks very nice. Yes, they are visible, polished stainless should be good forever.
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Old December 17th, 2020, 10:09 AM
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Originally Posted by olds 307 and 403
That looks very nice. Yes, they are visible, polished stainless should be good forever.
I hope so. More photos to come!

Thanks guys
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Old December 31st, 2020, 10:30 AM
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First engine start-up might even be next week! I can't wait!

I'll take video if I can

Happy New Year!
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Old December 31st, 2020, 10:51 AM
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Originally Posted by 72GoldOlds350
First engine start-up might even be next week! I can't wait!

I'll take video if I can


Happy New Year!
Happy New Year to you and yours, and to all our Oldsmobile friends and family!
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Old December 31st, 2020, 03:44 PM
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Looking forward to the video.
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Old December 31st, 2020, 10:31 PM
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We are all waiting with anticipation👍
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Old January 1st, 2021, 02:54 PM
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Likewise. Many years in the making - as we all know with our planned projects. I'm excited this actually got to happen. Hopefully more to come in the next few weeks.
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Old January 9th, 2021, 09:07 AM
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Exhaust is completed, and I like how we made the tailpipes all work out - polished everything from the rear axle back.





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Old January 14th, 2021, 06:53 AM
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She lives!!!

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Old January 14th, 2021, 07:23 AM
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Originally Posted by 72GoldOlds350
Sounds awesome! Congrats!
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Old January 14th, 2021, 07:46 AM
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Originally Posted by 72GoldOlds350
Love it!
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Old January 14th, 2021, 08:36 AM
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very awesome!!!!
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Old January 14th, 2021, 04:04 PM
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Sounds great!
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Old January 14th, 2021, 05:33 PM
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Thanks everyone!

First start-up is always a great moment. The finishing details are what is left - hoping she is finally completed in a month or so (as long as no major issues arise, but with how much works been done to this car, it wouldn't be surprising).
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Old January 15th, 2021, 04:36 AM
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That sounds great, cruising in top down weather. You will notice long, black snakes chasing your car, every time you hit the gas😉.
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Old January 15th, 2021, 07:33 AM
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Originally Posted by olds 307 and 403
That sounds great, cruising in top down weather. You will notice long, black snakes chasing your car, every time you hit the gas😉.
Hahaha touché!!
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Old January 18th, 2021, 12:57 PM
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I'm wondering if I should have placed this thread in the 'Major Builds' section. I just realized - oops! LOL
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Old January 19th, 2021, 07:43 AM
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One more for good luck:

https://youtu.be/9Tr-vttKIjw

Last edited by 72GoldOlds350; February 25th, 2021 at 07:30 AM.
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Old February 24th, 2021, 08:35 AM
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Update:

Finishing touches and working out the kinks when basically replacing every mechanical part in a vehicle. Intake manifold was leaking a bit, easy fix there. Then realized the trans front seal (tw. converter) was leaking so we had to drop the trans to re-seal that... Which was fine because the custom aluminum driveshaft wasn't balanced perfectly after the first few test drives so that had to get sent back out for more work. Once that is back in my hands we'll be close!
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Old February 24th, 2021, 05:13 PM
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Your car sounds great!! Tried watching the second video, and it says “private video”.
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Old February 25th, 2021, 07:29 AM
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Originally Posted by 6D7 442
Your car sounds great!! Tried watching the second video, and it says “private video”.
Thank you! And oops! Should be corrected now
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Old February 25th, 2021, 05:47 PM
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Sounds better in the second video!! What kind of mufflers are on it?
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Old February 26th, 2021, 06:33 AM
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Originally Posted by 6D7 442
Sounds better in the second video!! What kind of mufflers are on it?
I just got this kit and used the mufflers that came with it and customized the piping where needed from there:

https://www.magnaflow.com/products/1...em?aces=507892

Thank you!
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Old March 20th, 2021, 08:42 PM
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Well, I finally drove her for the first time in a long time, and first time since the project started. What a thrill!

Lots of little things to do until she's 100% but she can be on the road now. Hoping in a month or so she'll be back home in my garage
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Old May 8th, 2021, 10:32 AM
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Just took her home last night. How exciting! This weekend will be keeping me busy.



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Old May 8th, 2021, 01:17 PM
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Great to hear that another project is complete, and going HOME!!!
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Old May 8th, 2021, 05:05 PM
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Go out and put some miles on that beautiful car, enjoy!
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