Recommend after market manifold?
Thread Starter
Heel & Toe
Joined: Jun 2007
Posts: 15
Likes: 0
From: Shelbyville, KY
Recommend after market manifold?
I'm thinking of switching out my 3x2 manifold for a four barrel manifold on my 1969 Vette. Can anyone recommend a manifold that will fit under my stock, low profile 427 hood?
Drifting
Joined: Oct 2005
Posts: 1,528
Likes: 148
From: East London/SW Essex UK
Torker 11 is the only 'performance' inlet that will fit under stock BB hood. I say 'performance' inlet in inverted comma's as you'll find few people who consider it a performance manifold compared with other current choices - however these will not fit under BB hood......so where do you do with this? - I'd have thought that keeping the 3 x 2 no's was the best thing?
Le Mans Master
Joined: Mar 2001
Posts: 6,240
Likes: 1,013
From: Watkinsville, GA and Glen Cove, NY
The old LS6 manifold will fit. My car had one on it when I bought it with the stock big block hood. It was used on the 71 Corvette LS6. It is a square port manifold however, and you have oval ports. May work ok. Here is a link to one for sale. Works good for what it is.
https://www.ebay.com/i/321910227533?...D1401791550426
https://www.ebay.com/i/321910227533?...D1401791550426
Last edited by 69ttop502; Dec 26, 2017 at 05:40 PM.
Thread Starter
Heel & Toe
Joined: Jun 2007
Posts: 15
Likes: 0
From: Shelbyville, KY
I've had this car for a little over 30 years now, and every time I take it out, I have to check for leaks, be it fuel lines or front bowls. There is nothing more iconic than to lift the hood and see that air cleaner sitting on top of three duces. If I were to switch over, I just want to know what manifold would fit under the hood.
Racer
Joined: Nov 2017
Posts: 289
Likes: 32
I've had this car for a little over 30 years now, and every time I take it out, I have to check for leaks, be it fuel lines or front bowls. There is nothing more iconic than to lift the hood and see that air cleaner sitting on top of three duces. If I were to switch over, I just want to know what manifold would fit under the hood.
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Le Mans Master
Joined: Mar 2001
Posts: 5,739
Likes: 644
From: Lincoln, CA
I used the LS6 when I built the 496. Make sure to use the LS6 gasket.
You may also need a spacer under the carb.
https://photos.smugmug.com/Corvette-...dcvdgsa-X3.jpg
You may also need a spacer under the carb.
https://photos.smugmug.com/Corvette-...dcvdgsa-X3.jpg
Last edited by ddawson; Dec 26, 2017 at 10:06 PM.
Drifting
Joined: Jun 2015
Posts: 1,345
Likes: 753
From: Doctors Inlet Florida
The really cool (but expensive) solution would be to convert to fuel injection. There are a couple of companies the make 3x2 throttle body systems.
Last edited by Crimson Thunder; Dec 29, 2017 at 07:17 PM.