Other Oldsmobiles Anything not listed above, such as F-85 (1961-1963), Firenza (1982-1988), Starfire (1961-66 and 1975-80), Omega, etc.

73 omega heads?

Old Jul 18, 2024 | 01:48 PM
  #1  
Rockettreefiddy's Avatar
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73 omega #8 heads, compatible 4 barrel intake?

Im looking to invest in a 4 barrel intake manifold, currently the omega has #8 heads, do i need to replace the heads or is there a manifold that will accomodate the heads? Ive tried looking up as much as i can, i know the #8s are smog heads, i plan on either replacing the heads or deleting the egr. Just curious if a manifold out there fits or if i need to replace the heads. I have a deal lined up for a 600 cfm edelbrock carb, not my initial desire for an install but just about anything is better than the 2g currently in it

Last edited by Rockettreefiddy; Jul 18, 2024 at 04:00 PM.
Old Jul 18, 2024 | 06:39 PM
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The Edelbrock 3711 intake manifold will accommodate the egr. Also there is a member here selling a rebuilt quadrajet 7043250, which is correct for a 1973 350 for a good price.

https://classicoldsmobile.com/forums...-choke-180617/
Old Jul 18, 2024 | 06:46 PM
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Originally Posted by 4speed455
The Edelbrock 3711 intake manifold will accommodate the egr. Also there is a member here selling a rebuilt quadrajet 7043250, which is correct for a 1973 350 for a good price.

https://classicoldsmobile.com/forums...-choke-180617/
the edelbrock i sourced locally, practically brand new for 150 because he wanted a holley, i was just curious if the #8 heads will accomodate either the 2711 or 3711 without having to replace the heads, or if additional modifications were necessary. exhaust work is in the pipeline with a local fabricator as well
Old Jul 18, 2024 | 06:50 PM
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The heads do not need to be replaced. The #8 have the same mounting and fit as all other 1964(?) and up V8 heads.
Old Jul 18, 2024 | 09:00 PM
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From: St. Michael, MN
If you'd like a bump in compression install a set of 5,6,or 7 heads with your 73 pistons. Alot less dished than 71 and 72's. Would really make a difference in how it runs. That and a cam bump would really wake it up.
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