231 carb options
- Thread starter Javi702
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grass isn't always greener on the other side of the fence, a dueljet is a great carb when it is working correctly. If you are having problems with it and you are not interested is rebuilding it yourself there are some good shops that can do it and that will be cheaper than another carb
Dualjet. Why? Small engine, dead rear gears, and it was designed for that particular engine/trans/rear combination. Nothing better than the original stock carb for a stock engine. Spend your money getting it rebuilt and enjoy it another 30 years.
231, Heater only from factory, no smog, dualjet from 1979 231 no CCC carb, no ps now either
I'll try to answer your question a different way.
To change your dual jet carb requires one of 2 things. An adapter from (whatever) to the 210 dual jet base shape, OR, a new intake.
1) aside from turbocharging, the 231 doesn't make high power unless you fit two of the following three options: are a highly experienced engine builder with machine shop access and $5,000-$10,000 to burn
2) buick efe heaters are recessed into the factory intake. Thats going to screw with induction if you dont run a dualjet.
3) they don't really make adapter plates for other carbs these days on a commercial basis. There's isn't demand.
4) they no longer make aftermarket intakes for the carb 231, so you're limited to two choices: find old aftermarket for a few hundred or get a 252 buick factory intake. Both are overkill for a 231 since it really can't take advantage of it. You'll see decreased fuel mileage, and maybe 10hp if everything is dialed in right by adding intake and carb alone.
I could keep going... but, there isn't a point. Unless you want to swap a ttype/grand national top end on the motor and upgrade your trans/rear, the above apply to you.
If you are eliminating wiring/computers and want to clean up underhood buy a quality rebuilt non-CCC dualjet.
If your car isn't running right because the carb is worn out or screwed up, same answer. Buy whichever dualjet that matches your preference - CCC if running ECM and sensors, non-CCC if you're not.
Either way, if you have factory compression level, everything works properly, and it's dialed in, congrats. You've got 110hp and a fairly bulletproof motor if you maintain it properly.
If you're trying to swap a carb and gain power, dont.
To change your dual jet carb requires one of 2 things. An adapter from (whatever) to the 210 dual jet base shape, OR, a new intake.
1) aside from turbocharging, the 231 doesn't make high power unless you fit two of the following three options: are a highly experienced engine builder with machine shop access and $5,000-$10,000 to burn
2) buick efe heaters are recessed into the factory intake. Thats going to screw with induction if you dont run a dualjet.
3) they don't really make adapter plates for other carbs these days on a commercial basis. There's isn't demand.
4) they no longer make aftermarket intakes for the carb 231, so you're limited to two choices: find old aftermarket for a few hundred or get a 252 buick factory intake. Both are overkill for a 231 since it really can't take advantage of it. You'll see decreased fuel mileage, and maybe 10hp if everything is dialed in right by adding intake and carb alone.
I could keep going... but, there isn't a point. Unless you want to swap a ttype/grand national top end on the motor and upgrade your trans/rear, the above apply to you.
If you are eliminating wiring/computers and want to clean up underhood buy a quality rebuilt non-CCC dualjet.
If your car isn't running right because the carb is worn out or screwed up, same answer. Buy whichever dualjet that matches your preference - CCC if running ECM and sensors, non-CCC if you're not.
Either way, if you have factory compression level, everything works properly, and it's dialed in, congrats. You've got 110hp and a fairly bulletproof motor if you maintain it properly.
If you're trying to swap a carb and gain power, dont.
I have a 231 2-bbl as well. I think I'm probably going to put a 200-4R and 3.42 or 3.55 rear end in it. From everything I've read and have been told, that will make the biggest difference in performance without major engine changes.
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