retrocar66

I'm upgrading my '66 chrysler 383 B engine to a 4-barrel setup as part of a rebuild (see this thread)

Is there any reason I can't use a rebuilt quadrajet carb on this engine, with (for instance) an edelbrock "performer" manifold? I have read great things about these carbs, especially the variable airflow. But I haven't found any examples of a Chrysler application until the 80s. A 60s remanufactured Quadrajet is still much cheaper than a new Holly or Edelbrock carb. I'm not sure how all the linkages would work.

Has anyone tried this kind of setup, or have any thoughts on it? Is there a manifold that would work with a quadrajet on a 383?

440roadrunner

Actually, some Mopars "meant" for Thermoquads CAME with QJs. I believe they were manufactured by Carter, but that might be an entanglement of my memory. I do know that some QJs were manufactured under license by Carter

The only downside I can think of is getting a choke to hook up if it was not a Mopar QJ. This was not a problem when I ran one on my 71-340---in my beat up old FJ-40 Landcruiser years ago. I built / modded the choke linkage for a manual choke. this is actually very easy. I silver brazed a little arm onto the original linkage, and used two what are called "choke cable stops" which you could actually buy back then.........like these



I used one with the screw through a hole in the lever, with a longer screw and a locknut, so the stop body swiveled on the screw. The choke cable went THROUGH that some distance, with a weak compression spring on the cable, and finally, a stop clamped on the far end

What this allowed, is for the choke linkage to work "more like" it was still hooked to the original thermostat. The damn thing just worked great. With an electric pump that thing would fire up in all kinds of weather. I used to plow snow. It could set for MONTHS at a time, and fire right up again.

Coronet 500

I think it's a great carb and have used them on Dodges with a little linkage fab.

I don't trust used or someone elses rebuilt carb unless I can hold it in my hand. I've all but given up on old carbs as the throttle shafts are worn or some other age related problem.

Latest one I'm using is a Street Demon which I love for the street.

http://www.demoncarbs.com/Types/Street%20Demon.asp

retrocar66

Thanks for the feedback. The Street demon is an interesting idea, I hadn't seen those.

Btw what CFM would you use in this situation? 600 or 750? I'm building it with a cam that is just a hair bigger than what was used with the original 383/440 4-barrel, but not much. Basically slightly more exhaust lift, and a little more duration on both intake and exhaust, but that's about it.

TVLynn

Their were some factory Quads after The thermoquad stopped production. The only problem may be jetting

moe7404

i recommend an O.E.M. Carter AFB.

RacerHog

Oh Stop it !!!!

moe7404

GEE bob we have to stop meeting like this. people will start talking.