using chevrolet Q-jet on AMC 360

[bigjeepguy]

My dad and I were cleaning out my grand fathers shed, since he is deceased and the trailer burned down and I found a Q-jet, it is in good shape, I was thinking of using it with the edelbrock intake and cam on my 360, as it is getting closer to completion, and I want to get the engine going again, has anyone tried this, and will I need the spreadbore adapter on the edelbrock intake?

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Jonathan landon
1973 J-4000 3602v ,TH-400
Dana20,Dana 44's

[RudyC]

I did this last spring. You will need an adaptor since the edelbrock is a sqaure bore BUT has the bolt holes there also for a spread bore. Get a open center spread bore to holley adaptor at any parts place and drill out the inner bolt holes so it will slip over the carb mounting studs, you will need lomger carb mounting studs too. Then mount the carb over this and it will work fine.
What year is the Jeep. If you have the TF727 you will need to modify the tranny to carb linkage. I had the TH400 so I didnt have to worry about it. Bouchillon performance has a cable adaptor kit for this by the way.
The Q jet i think is the best off road carb out there.

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79 WAGONEER (SOLD IT, BUT WILL FIND A LESS RUSTY ONE LATER)
79 DODGE, MY LIL RED TRUCK. 318, 4BBL HOLLEY,TF727.
pictures at:
http://albums.photopoint.com/j/AlbumIndex?u=1500380&a=11321052

[bigjeepguy]

I have the TH-400, so I guess I lucked out, especially since I have a Dana 20 T-case, I have nothing against the QT, but I like having a gear driven T-case, IMHO you can thrash it a little harder than chain drives, and you don't have to buy new chains.

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Jonathan landon
1973 J-4000 3602v ,TH-400
Dana20,Dana 44's

[au7700]

As mentioned before the Q-jet will bolt on to your manifold w/ an adapter....here's an idea for ya.....mount the Q-jet backwards on the intake...yeah it's more work but what you will end up with is what i like to call hillbilly fuel injection...Let me explain....if the bowl of the Q-jet is towards the rear of the vehicle it is completely impossible to starve it for fuel due to climbing ridiculously steep angles. It's an old trick and i have seen it work many times on everything from stock 4X's to serious hillclimbers. Good luck!!!, mike

[Stuka]

Hrm, I went to put a new carb on my 75 cherokee which came with a 750CFM Q-Jet (motorcraft) but no adapter I found would work. Not only are the studs to bolt the carb on in a dif place, but the bores themselves where more spread out to the sides, annd more spread out apart front to back. So unless i change the intake,, I am stuck with a huge carb that floods the motor if floored

[scotty]

ive got a Q jet on the 360 in my j20. its on a factory intake with a square to spreadbore adapter. the stock intake is a goofy small spread bore. wish id known that or i wouldnt have bothered swapping it. anyway,mine works with the square bore gasket(the one with 4 holes,not the one with a big open square). true,this is not takin advanage of all potential power gains from a free-er flowing air intake,since the square bore gasket covers up some of the big secondary bores on the intake,but it does work.

im gonna make an aluminum plate to go there to open it up and free up the airflow while not creating air leaks.

just FYI.there also exists a 2bbl to Qjet adapter. i used it for awhile,until i found the 4bbl intake and adapter for $20. wish id stayed with it,i dont have my foot in it enuff to open the secondaries much anyway,and it ran just fine with that adapter. and it would have saved me a days worth of wrok swapping manifolds. http://www.ifsja.org/ubb/mad.gif THAT was a PITA. did it all by myself and was on the verge of using my engine hoist to lift that big cast iron sucker up there and sit it on with out moving that big stupid gasket...

ANYWAY,the Qjet i think,works well on the 360,and you can make it work with the stock 4bbl intake,but this,IMO is prolly not a whole helluva lot better than using an adapter on the 2bbl intake.

on this backwards thing,now you can climb a vertical hill,but what about when you come down? seems like youll still have starvation prollems coming down,and right/left off camber spots,on the verge of rollover,are not gonna be any different. seems to me that you can make a Qjet not fuel-starved on steep climbs if you tweek it right,and that the work of mounting it backwards doesnt really seem worth it. just how do you make the throttle work with it backwards? also,unless you have a square bore intake,now the primaries are over the huge secondary hle,and vice versa...

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scott
85 grand wagoneer
258 with motorcraft 2bbl/904/twin stick dana 300/dana 44/welded amc 20
38x15.5 gumbo mudders
snorkel/dual batteries/onboard air/"custom" convertable
3 inch body lift/mostly stock suspension/"modified" fender openings
custom front/rear bumpers and brushgaurd

T18/dana-spicer 18 with drum E brake and PTO, swap very soon
widetrac offset dana 44s with clearanced center sections and rear discs very soon
BIG tow truck PTO winch and full roll cage install shortly thereafter
4.0 aquired-4.5L stroker someday...

now we can do some 'wheelin!

[RudyC]

Scotty,
It's a PITA to mount the Q on a stock 4bbl amc manifold. Mostly cuz the bolt holes are only square bore positions. I used a edelbrock that I got from ebay and that one was a squarebore but had the bolt holes for both square and spread bore. And the open centered adaptor worked fine. I was going to mount a Q on the stock intake, even bought the four hole adaptor but the are all holley carb to spread bore intake so I had to customize it. But I came accross a nice holley before I could mount it.
I know what you mean those puppies are HEAVYYYY!!!!