From DualJet To...

[RustRocket]

Hi all, I have a question mainly toward people running 2bbl cars with the ECM delete. Are there any other carbs that fit the intake, or do I have to use a DualJet? MY car's computer was ripped out in the past and it runs like total crap. My plan was to do the full ECM delete, but I'm wondering if I'm limited to using a 75-80 DualJet, or if there's another carb out there that I can use. I have a 231, perhaps I could use the 2bbl from a 70's Jeep equipped with the 225 Dauntless? Some help would be greatly appreciated, Thanks

 

[Bonnewagon]

Nope, just a Dual-Jet will fit. When gas was $4 my 400 was killing me so I swapped a 231 into my Malibu wagon but scrapped all the computer stuff. I was lucky enough to find a '79 Dual-jet and HEI in a junkyard that worked great without touching anything. I found out there are slight differences with the throttle and trans linkage so be careful when you shop around. Bring the old carb and eyeball them together. Oh, and around me, even if the donor cars are long gone, the yards keep stuff like carbs and distributors back in the shed.

 

[RustRocket]

Thanks. But would I be correct to assume that a 225 Intake will bolt up to a 231, or is that not possible?

 

[Bonnewagon]

I'm not all that familiar with the 225. Was that the Buick odd-fire aluminum V-6? Those are pretty old, in fact I looked at RockAuto and they don't show a carb, but the carb gasket they show looks like a one barrel, like the old Rochester model B. The oldest 231 I ever worked on was a '76 Sunbird and it used the Rochester 2G two barrel. 225/231 Intakes may swap, but what carb was used?

 

[RustRocket]

I've seen a lot where its simply called a "Rochester 2 Jet", nothing more apparently

 

[Bonnewagon]

This is a Rochester 2G. It will not swap with a Dual-Jet.

 

[G_Body_Enthusiast]

You could use a 4.1 intake and a quadrajet.

 

[williamattop]

What year is the 231?

 

[RustRocket]

My 231 is an 82, and I'm aware of the 4.1/Q-jet swap. The problem is finding a 4.1 in the first place. I have one of four drivable G-Bodys in this whole town(its a really small town). I actually don't really want a 4bbl, I'd like to just keep a 2bbl. I don't see any gain in having the Q-jet, I'm just wanting get this turd running as good as possible until I get a new engine.

 

[Bonnewagon]

So re-reading from the beginning, you have a car that needs a non-computer Dual-Jet and HEI distributor just to function. To acquire as cheap as possible would be: junkyards, swap meets, car shows, craigslist, ebay, etc. Condition will range from perfect to total crap, so pay accordingly. Another option is rebuilt either from local shop or RockAuto and eat the core charge. Condition will be perfect and maybe even a warranty. If it was me I'd scrounge up something and rebuild them but for someone else I'd suggest rebuilt.