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Unread 02-13-2012, 08:12 PM   #1
TJon22s
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v8 conversion

I haven't been on here in forever so i got on here and realized just how much useful information is on here,Anyway,I'm really interested in doing a 350 carb swap on my tj,I've done some searching but cant really find an in depth write up on someone doing this,Can someone point me in the right direction on where to find a thread of this nature?

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Unread 02-14-2012, 07:13 AM   #2
Wheelin98TJ
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Carb motors are not that popular in TJs since they have fuel injection from the get go.

Why a carb?
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Unread 02-14-2012, 07:28 AM   #3
crusher242
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Better off keeping fuel injection. Carbs can starve in certain offroad situations.
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Unread 02-14-2012, 07:30 AM   #4
PFCJoker
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Not to mention in most if not all States going from fuel injection to carb makes your vehicle non street legal.
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Unread 02-14-2012, 07:57 AM   #5
crusher242
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Ha! Forgot that little nugget. There is a kid by me that wanted to do it and thought he could get away with it. He thought he could just get the vehicle tagged as a custom. In NYS you can only do that if the vehicle never came with a vin from production. Basically it's for old customs and kit cars.
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Unread 02-14-2012, 10:15 AM   #6
ratmonkey
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Quote:
Originally Posted by crusher242 View Post
Ha! Forgot that little nugget. There is a kid by me that wanted to do it and thought he could get away with it. He thought he could just get the vehicle tagged as a custom. In NYS you can only do that if the vehicle never came with a vin from production. Basically it's for old customs and kit cars.
most states with custom car titles and annual inspections have gotten really, really hard on street rods/custom trucks.

then you go to florida, colorado, indiana, etc...and you see sand rails, moon buggies, and 1 tons with 16" of lift cruising the main drags.
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Unread 02-14-2012, 10:56 AM   #7
TJon22s
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The only reason i was wanting a carb is because i have more exp. with carbs,as far as i know theres no inspection in my small town,If there was half the vehicles here would be parked on a lawn somewhere lol.this jeep is my DD and will never see any difficult terrain.i drive maybe 5 miles to work,Also when i was looking for a new jeep about two years ago every TJ with a 350 in my town was carbed except for maybe one.
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Unread 02-14-2012, 04:00 PM   #8
jon1371usmc
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Originally Posted by crusher242 View Post
Better off keeping fuel injection. Carbs can starve in certain offroad situations.
While true, I doubt a "tj on 22's" would see to many situations where that would occur.
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Unread 02-14-2012, 05:51 PM   #9
texas_yj
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a 'normal' carbed 350, like you'd pull out of a 70 odd PU truck, will be less HP, less torque, and less drivable than the 4.0 FI jeep engine. look up post on here about puting magnums in TJ, is the easiest FI/V8 swap to do, and if you can do a carb V8 swap, you can figure out the FI part.
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Unread 02-14-2012, 06:23 PM   #10
rda616
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There are many reasons why nearly no one does carbed v8 swaps. If you want the cheapest, easiest route go magnum v8. If you don't mind spending some coin then go with a gm 5.3, or hemi swap. Or for something in between a 5.0 ho swap isn't bad either.

Carbs aren't as efficient, or capable offroad. Also the gages are run of pcm and can't simply be bypassed as is the speedometer.
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Unread 02-14-2012, 06:48 PM   #11
tbburg
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If you're dead set on a carb:
The info you're looking for has nothing to do with the carburetor. If you're familiar with carbs, you already know everything you need to hook one up. The only change you need to make to the chassis involves a fuel pressure regulator on the fuel line.
You main interest is going to be the physical engine swap
Find a thread or threads detailing any SBC swap,.. they'll give you the info on how to deal with engine mounts, bell housing or trans, adapters, exhaust manifolds, radiator issues, etc. Just ignore the ECM parts of the thread. If you already know how to tune a carb, you know how to hook up a distributor.
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Unread 02-14-2012, 06:51 PM   #12
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Or you can just stroke the 4.0 and be done with it...
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Unread 02-14-2012, 07:24 PM   #13
Andy5150
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go with a 5.3 Vortec. 110 more horsepower , and less weight.
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Unread 02-14-2012, 07:33 PM   #14
awinski
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4bt swap it. <- my dream
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Unread 02-14-2012, 07:49 PM   #15
sduncan
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Its all about how much $$$ you want to spend....The cheapest injected route is no doubt the Magnum motors. After that you start to really get into some $$ wheather its a GM or a Hemi swap. The link to my build thread is in my signature...


I wouldn't buy a garden tractor with a carb....stay with an injected motor.
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