Some carb/intake advice for a 283? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 02-10-2012, 10:52 PM
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Some carb/intake advice for a 283?

I have a stock original 283 with a 2bbl.
I was looking into swaping it to a 4bbl this summer. People had told me I would want a smaller carb like a 500cfm or even under that,But the thing is I plan on doing a engine swap Next year and dont really want to buy 2 new carbs and would really like to get a nice one now then pull this one and put it on my new 383 next year.
I was plan on going with this set up now for the 283
http://www.summitracing.com/parts/EDL-71014/
http://www.summitracing.com/parts/EDL-18064/

So I had this question going on another site and people gave me pretty good responses and opinions,For the most part people said it will work fine as is,someone else said it will work but I should get a calibration/metering kit for it to adjust for the 283.
I also dont have a lot of know how with carbs,but from what I read this metering kits is just a part change out,to restrict and or add fuel flow? and easy to do?

Anyway I just figure I would try a new site and see what other think before I place a order. Thanks!
"Sorry if this post doubles,I had some pc hicups and not sure if it posted or not"

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Old 02-10-2012, 11:54 PM
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Because your running a 283 I recommend a different approach. You have to remember, you have small cubic inches, low end torque is important on small cube engines. What helps develope low end is velocity. I recommend a standard edelbrock performer. The performer rpm is really meant for more high revving and on the street that's something you don't do much of.
As for a carb I recommend the Rochester Quadrajet. The Q-jets small primarys give you excellant low end manners and fuel economy due to the small primaries. When performance is needed the massive secondaries are there to fill the need. With a Q-jet you don't over carberate or under, it's air dam design feeds the engine what it demands.
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Old 02-11-2012, 09:21 AM
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IMHO even though the intake and carb are mismatched for your 283 buy them, put them on and save a few bucks and use them on your future 383.
Wouldn't be the first time someone's done that.
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Old 02-11-2012, 10:30 AM
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Thats my point,People said the quadra is the way to go,but I dont feel it would be the best choice for the 383 in the future.
Im just wondering what to expect with this setup on the 283,will it run ok and without problems,or will it just not run good at all with constant flooding or back firing etc?
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Old 02-11-2012, 10:43 AM
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Quadrajets were used on everything from 4.3L V6s to the mammoth 500 cubic inch Caddy V8s. They'll feed a 383 no sweat. Buy a cheap iron 4bbl intake manifold off craigslist and run the Q-jet on the 283. When you decide to step up to the 383, you can spend money on an intake manifold suited to your build.

To be honest, whats so terrible about leaving the 2bbl on the 283? If you're going to take it off to use on a 383 later down the road, why put it on in the first place? Save the carb some undue wear and just run what you have till you can build what you want.
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Old 02-11-2012, 12:09 PM
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Quote:
Originally Posted by Valkyrie5.7
Quadrajets were used on everything from 4.3L V6s to the mammoth 500 cubic inch Caddy V8s. They'll feed a 383 no sweat. Buy a cheap iron 4bbl intake manifold off craigslist and run the Q-jet on the 283. When you decide to step up to the 383, you can spend money on an intake manifold suited to your build.

To be honest, whats so terrible about leaving the 2bbl on the 283? If you're going to take it off to use on a 383 later down the road, why put it on in the first place? Save the carb some undue wear and just run what you have till you can build what you want.
Sounds right to me.
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Old 02-11-2012, 01:50 PM
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Quote:
Originally Posted by techinspector1
Sounds right to me.
Absolutely right.

The stock 283 w/2bbl would not really perform better with a 4bbl. The 2bbl is matched to the engine's valves/cam/etc, in fact the 4bbl would probably create drivability issues (although the rochester would be more forgiving).

Save your money and match the new carb/intake to the 383's build. I like the holley and/or the edlebrock (carter) carbs for tuning. But for bolt on and forget it, most rochester carbs would work very well. Try to match it to your class of car (like GM A body) with a similar displacement engine, and factors like transmission and gearing included.
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