Jared G.

Has anyone ever converted a 4.0L with EFI to carburator setup? It looks like it would be pretty simple but wanted to make sure. Engine's going into a project car so I don't feel like putting a computer in it.

Also, anyone want to buy my EFI system once it's off? If so, what parts would you want?

Thanks,
Jared

TheJerm

What kind of car is in going into?

Get a 4.2, its already carb'ed

Jared G.

Well it's going into a 1954 Hudson Super Wasp. The only reason I chose the 4.0 was because it's almost the same engine that was in the car origonally, the 256. Also because they're easy to come by. What kind of car/truck does the 4.2 come out of?

TheJerm

To do a 4.0L, i guess you would need a carb to fit and a dizzy to control the timing. Sounds like a cool project

http://en.wikipedia.org/wiki/AMC_Straight-6_engine

Are you just trying to keep the same displacement? Ford straight 6 are 5.0L from the 80's

Jared G.

Not really, no we're not trying specifically to keep the same displacement. I mean the deal with this car is that it's an old rust bucket a friend and I rescued from a guy's back yard. We're kinda going for a rat-rod kind of design since it would take too much time, money, and effort to make it an actual restored car. The goal right now is to strengthen and reinforce the unibody and get a workable drivetrain.

The 4.0, from what I've been told, matches up to many of the origonal mounts and brackets, and is a practical conversion since the blocks are similar.

However, the main reason I'm really wanting to go with the Cherokee 4.0 engine is because they're easy to find, local, and really inexpensive. I also have a friend(whos a member of this forum) who really could use some misc. parts from it, so we were going to buy it together and divide up what we need.

rich

The carb you might want to check out is the EMPI performance carb, look at Quadratec.com

Jared G.

The main thing with this car:
Inexpensive is key.

The idea we had, since there's not much left of the car's origonals, is to find a running Jeep Cherokee for less than 500 bucks, pull the drivetrain and misc. parts, then give the rest to my friend who is in the process of building a Jeep Cherokee offroad truck and needs parts.

Since we don't want to fool with the hassles of a computer and fuel injection, the idea was to remove the EFI system, sell it fairly inexpensively to someone who needs it, plug the injector holes, then fabricate an adaptor for a carb

So basically, what we're going to have is a Hudson with an entire Jeep Cherokee drivetrain.

Jared G.

Another thing: If I do go the 4.0 carb conversion route, when I remove the fuel rail/ injectors, what else should I remove with it to be able to sell it as a useful setup to someone? And would people be interested in buying it?

razor02097

The older AMC engines where the ones that had the carburetor. I don't know if this is true but maybe you can bolt the older head on a newer block.

Jared G.

That's true, that would probably be the way to go, but the thing is that we're not wanting to do a rebuild. The idea is to put a fairly reliable, already running engine under the hood. To do this, it would be alot simpler to go with a carburation setup, at least from a wiring standpoint.

The Jeep 4.0 is cheap, easy to find locally, reliable, similar to the origonal engine size, and useful for parts towards my friend's Cherokee that he's in the process of building. So that's what we're gonna try to do, but we need to figure out the best way to put a carburator on the origonally fuel injected motor.

TheJerm

I dont see why could couldnt pull all the EFI stuff off and just slap on any carb that fits. granted you might have to drill and tap new holes and bore out the opening but the intake is aluminum so its easy. JB weld or have a shop weld the injector hole shut. A dizzy off a 4.2 might bolt right it and take care of timing.

I think this is a great idea, rat rods are sweet!!

what are you gonna do with the trans? I know a manual trans would be the easiest but idk how you would get the auto trans to shift.

Jared G.

Good point. Anyone know where to find a mechanical distributor for a 4.0?

Jared G.

Thanks yeah definitely, thats what I was thinkin. Well you answered my previous question as i was writing it lol. Yeah I think I'm gonna need a manual trans.

Jared G.

By the way, could anyone tell me specifically which vehicles, from what years had the 4.2L? I need that distributor, so I figured I could check the local junkyard and see what I turn up.

TheJerm

Rat rods are so much cooler with huge shift in them.