roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
SOLD - Offy Twin 2bbl. Intake Manifold, 215/ RV8
New, never installed. Pattern is Rochester 2GC. IF your crafty, adapt 2 Webbers/ etc. ? $210.
10% of sale price will go to BV8. Contact with BV8 message system. Thanks, Art. Edited 1 time(s). Last edit at 09/16/2021 09:22AM by MGBV8. |
MGBV8 Carl Floyd Kingsport, TN (4513 posts) Registered: 10/23/2007 11:32PM Main British Car: 1979 MGB Buick 215 |
Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
"Or adapt two Holley Sniper 2 gc type EFI's"
It's a 2 bbl manifold, James. I said adapt a Holley Sniper 2 bbl because I am not sure on the flange mounts. Edited 1 time(s). Last edit at 08/26/2020 10:03AM by MGBV8. |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
I think "copies" are available ? Big Olds joke, after they killed the 215" Jet-fire, they put ONE, 2GC on the 394" V8, in 64, and air cleaner said Jet-fire, What a shame...
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Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
Carl, Discription says twin 2 barrel--doesn't that mean 2 twos? Rochester 2GC Sniper would fit right on with no adapter--that is two of them. These I believe were for dual 2 barrel rochester. I do not know if they were progressive or one to one. I think one to one for distribution.
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Moderator Curtis Jacobson Portland Oregon (4577 posts) Registered: 10/12/2007 02:16AM Main British Car: 71 MGBGT, Buick 215 |
Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
I think Offy and Edelbrock have both offered twin 2bbl manifolds for 215. Kurt Schley's How-It-Was-Done article reported that he used the Edelbrock version:
Quote: Unfortunately, I didn't take very good photos of it when I had the chance - at the 1998 BritishV8 meet in Annapolis. |
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Richard/SIA Richard Brengman No. Nevada (401 posts) Registered: 01/17/2014 07:47PM Main British Car: 1969 Triumph GT6+ 225" Buick V6 |
Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
I may have to buy this if I can get two Weber DCNF 40mm or 42mm to fit.
Need to compare bore spread and bolt patterns. |
Richard/SIA Richard Brengman No. Nevada (401 posts) Registered: 01/17/2014 07:47PM Main British Car: 1969 Triumph GT6+ 225" Buick V6 |
Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
Hmm, found some info.
[www.chevyclassicsclub.com] There are early and late version 2GC's. Mounting and bore differs. Still looking for bore spacing. Yes, I did find a source of almost reasonably priced DCNF's. |
Richard/SIA Richard Brengman No. Nevada (401 posts) Registered: 01/17/2014 07:47PM Main British Car: 1969 Triumph GT6+ 225" Buick V6 |
Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
No. 5262?
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Richard/SIA Richard Brengman No. Nevada (401 posts) Registered: 01/17/2014 07:47PM Main British Car: 1969 Triumph GT6+ 225" Buick V6 |
Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
Does this manifold feed four cylinders from each carb, or is the plenum full length so that all eight cylinders pull from both carbs?
A bottom view would probably make this clear but I have not been able to locate one. |
MGBV8 Carl Floyd Kingsport, TN (4513 posts) Registered: 10/23/2007 11:32PM Main British Car: 1979 MGB Buick 215 |
Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
Does this help?
Quote: |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
Open plenum, like all of their single plane 215/RV8 manifolds. Single bolt pattern. Art.
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Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
WTB Offy Manifold like this one. Is it still available?
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Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
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DiDueColpi Fred Key West coast - Canada (1365 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
Mercury marine has a 2GC that flows around 350cfm. Two of them would bolt on and give you enough for any RV8
Used them a lot in the old 2bbl limited stockcar days. Tunable for almost anything and cost less than a set of Weber jets. |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Offy Twin 2bbl. Intake Manifold, 215/ RV8
Two 2bbl manifold pictured, must be Edelbrock, as a dual plane ?
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