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The Soon To Be EFI 455 Omega :D

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Old Oct 1, 2023 | 02:39 AM
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The Soon To Be EFI 455 Omega :D


Here's my rare piece of Olds history. Trying my best to get the 455 in this thing by new years...But, you know how that goes..
Old Oct 1, 2023 | 03:35 AM
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Nice. I put a 455 in my 73 Omega back in the early 80s. What a great car it was. Keep us posted.
Old Oct 1, 2023 | 04:05 AM
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Cool Olds! I hope you get her running soon.
Old Oct 1, 2023 | 09:53 AM
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Before spending $$$ on EFI, you might investigate a good Q-jet. @rickw30 has two nice 800 CFM cores for sale, your choice for $100.
Old Oct 1, 2023 | 11:04 AM
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X2 on BangScreeh.
Old Oct 1, 2023 | 11:05 AM
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Old Oct 1, 2023 | 03:21 PM
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Old Oct 1, 2023 | 05:05 PM
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Its been almost two years since going efi Ive had zero issues.
Old Oct 1, 2023 | 05:06 PM
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Originally Posted by Greg Rogers
Nice. I put a 455 in my 73 Omega back in the early 80s. What a great car it was. Keep us posted.
Oh explain the process
Old Oct 1, 2023 | 05:27 PM
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Originally Posted by -Ω-
Its been almost two years since going efi Ive had zero issues.
When you said "soon to be" I assumed it was not already a fait accompli. My bad.
Old Oct 1, 2023 | 05:41 PM
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Well... Soon to be 455... lol
Yeah ive had no issues with the efi..
Old Oct 2, 2023 | 03:25 AM
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So you have FiTech EFI on a SBO engine in your Omega now?
Old Oct 2, 2023 | 05:55 AM
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Originally Posted by -Ω-
Oh explain the process
Fits right in, I used exhaust manifolds that came w/ engine. Engine was in a 71 Olds 88. Someone had put it in the 88 originally from a 69 Toronado. So I think manifolds were from the 88. Seems like left manifold did hit on Nova style steering box, but I think I ground it and added spacers on frame mounts to move engine some. I was a long time ago.... Used a T350 trans which fit right in. I thought that would be too weak, but worked great though I wasn't super hard on it. Omega was originally a 350 car, but engine was gone when I got it. Used original open rear end- one wheel peal!! Took to a muffler shop who made exhaust pipes from manifolds to mufflers- then dual glasspacks and tailpipes for a dual exhaust Nova. Good times, very nice driving car powerful and dependable.
Old Oct 2, 2023 | 10:13 AM
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Hey, as far as throttle body EFI on Olds engines--I've done installs with Fitech and Holley Sniper. Fitech was nice with support for PWM fuel pump, but a little more finicky with getting the inital timing set (once you are there--it's all good). Holley Sniper was a breeze to set up, but didn't support PWM. New sniper 2 is out, haven't had experience with one yet but I've heard good things.

I'm currently running the Sniper Quadrajet on my G-block 400, and it performs nicely.

For either, I highly recommend upgrading to a CS130 alternator if you haven't already, install the MSD 8830 across the battery, and use MSD Superconductor plug wires. RFI will drive you nuts, and taking this advice might save you from stroking out.


And:

https://photos.app.goo.gl/kKpXFQ2sejmjEa7f9

Last edited by Bryan Burch; Oct 2, 2023 at 10:19 AM. Reason: added video
Old Oct 2, 2023 | 02:39 PM
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Originally Posted by Olds64
So you have FiTech EFI on a SBO engine in your Omega now?
Yes sir!
Old Oct 2, 2023 | 02:41 PM
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Originally Posted by Greg Rogers
Fits right in, I used exhaust manifolds that came w/ engine. Engine was in a 71 Olds 88. Someone had put it in the 88 originally from a 69 Toronado. So I think manifolds were from the 88. Seems like left manifold did hit on Nova style steering box, but I think I ground it and added spacers on frame mounts to move engine some. I was a long time ago.... Used a T350 trans which fit right in. I thought that would be too weak, but worked great though I wasn't super hard on it. Omega was originally a 350 car, but engine was gone when I got it. Used original open rear end- one wheel peal!! Took to a muffler shop who made exhaust pipes from manifolds to mufflers- then dual glasspacks and tailpipes for a dual exhaust Nova. Good times, very nice driving car powerful and dependable.
Yeaaah im gonna be egging some long tubes XD
Old Oct 2, 2023 | 02:43 PM
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Originally Posted by Bryan Burch
Hey, as far as throttle body EFI on Olds engines--I've done installs with Fitech and Holley Sniper. Fitech was nice with support for PWM fuel pump, but a little more finicky with getting the inital timing set (once you are there--it's all good). Holley Sniper was a breeze to set up, but didn't support PWM. New sniper 2 is out, haven't had experience with one yet but I've heard good things.

I'm currently running the Sniper Quadrajet on my G-block 400, and it performs nicely.

For either, I highly recommend upgrading to a CS130 alternator if you haven't already, install the MSD 8830 across the battery, and use MSD Superconductor plug wires. RFI will drive you nuts, and taking this advice might save you from stroking out.

https://youtu.be/mDPhkG6XXgw

And:

https://photos.app.goo.gl/kKpXFQ2sejmjEa7f9
Initial tuning from this video. This was literally the first turn of the key after switching
Attached Files
Old Oct 2, 2023 | 11:40 PM
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As for my alternator im already running a Tuff Stuff 7127k
Old Oct 4, 2023 | 06:12 PM
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Originally Posted by -Ω-
Its been almost two years since going efi Ive had zero issues.
I went to sniper, best money I have spent. It starts hot ​​​​🔥 or cold 🥶. Idle is bang on all the time, smoooooooth. Good mileage to boot.


Last edited by maddoctor; Oct 4, 2023 at 06:16 PM.
Old Oct 4, 2023 | 11:01 PM
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Originally Posted by maddoctor
I went to sniper, best money I have spent. It starts hot ​​​​🔥 or cold 🥶. Idle is bang on all the time, smoooooooth. Good mileage to boot.
I honestly havent put many miles on mine since swapping. But ive had ZERO issues and its truly turn key.
Old Oct 5, 2023 | 04:52 AM
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That's awesome there's some good feedback about TBI EFI. I got rid of the Quadrajet on my 71 98 long ago. No doubt the Summit carburetor runs way too rich. Maybe I should swap to EFI. They even have that Sniper Quadrajet EFI now. 🤔
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