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compatible engines for 69 cj

reason i am asking is i rebuilt the rochester carb and i think it washed the rings...thus need rebuild or new motor...i wouldnt mind a newer v6 with fuel injection....we want to mud run with it
 
There are many options depending on how far you want to take it and what kind of bucks you want to spend. If you do want FI, remember you have to put a new wiring harness in or at least adapt the one from the donar vehicle.

IMHO, if all you did was loose a little compression, that Dauntless Buick 225 V6 might be worth doing a little refresh on. It is a very stout V6 and parts are available at just about any parts store.

A Dauntless Buick 225 V6 231 out of a late model rear wheel car will drop right in and most late model Olds or Buick V8's will with very little work.

Here is a great article on the Dauntless Buick 225 V6 in Jeeps. The Buick "90 Degree" V6 Engine - Novak Conversions

Can you give more information on ho much time, money and fabrication you want to do?
 
I'm a big fan of those old Dauntless Buick 225 V6 Buick engines. Great torque down low, those iron pistons just keep pumping out power, and good luck trying to break one!
 
coldwater said:
I'm a big fan of those old Dauntless Buick 225 V6 Buick engines. Great torque down low, those iron pistons just keep pumping out power, and good luck trying to break one!
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yea the moter seemed to have great bottom end torque...although i wasnt sure if it was the motor or the 5.38 gear ratio in the pumkins..i been trying to find a snorkel kit for it but no luck yet... the solid steel fan throws mud and water up on top of engine....i do plan to try and fit a set of 33 or 35 x 14-15.0 swampers on it because we mostly hit mudholes and run muddy/often tree blocked logging roads.
i plan on spending about 2-3k on engine and tires. tires will be about 900-1000.
 
What the heck? That's a great idea! Strap an extra belt right to the core support rod!

So, have you made a decision on what to do with the engine? :D
 
CJ said:
What the heck? That's a great idea! Strap an extra belt right to the core support rod!

So, have you made a decision on what to do with the engine? :D
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think i am gonna get my friends dad....has a stock 1964 f100 i beam fame truck.....never bought starters or anything he always rebuilt himself lol...to check the compression and see what needs to be done...if i have to rebuild i will prolly do some performance upgrades.

and yes the belt was there when i bought the jeep...also there was a military ammo can in back with a full set of gears, extra plugs, wires, a tarp and even toilet paper in it....lol oh and another driveline
 
and yes the belt was there when i bought the jeep...also there was a military ammo can in back with a full set of gears, extra plugs, wires, a tarp and even toilet paper in it....lol oh and another driveline
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Just as long as the toilet paper isn't used, it's ok. If it is used, make sure you wash it out before re-using it!:D Looks like a great project. Keep us posted.
 
If you're in water a lot, you may want to go with an electric fan unit that won't do the flying mud trick.
 
I used an electric fan from a lincoln MarkVIII on my old CJ5 . You can find plenty of them on ebay pretty cheap. Alot of the mustang guys use them when they build drag cars because you can find them cheap, they pull plenty of air, and are fairly reliable. Get a temperature switch and add your own toggle switch so you can shut it off from the cab before crossing deep water, and you are in bussiness.;)
 
i was thinkin of an electric setup but i was thinking electric equipment + mud and water mite not be best....i was thinkin maby a clutch fan thet would get stopprd by the water
 
Almost all later electric fans are sealed. They should have no trouble with most water and mud applications. As PC said, if your gonna be under water, just put the fan on a switch and turn it of..

IMHO, even a fan clutch is still gonna fling :dung: all over. They really don't allow the fan to free wheel that much...
 
Most clutch fans have slip alowed dependent on temp. The hotter the motor, the less slip. If you were running in 4lo on a trail and come upon water, the clutch will most likely not be slipping much. Had one in my old yj, it slung :dung: everywhere. Then the heat from the motor would bake it on. We have a lot of clay here, that stuff will not come off once it's baked on. Thanks for this topic, I just like using the :dung: smilies anytime I can!:D
 
projectcrawler said:
Most clutch fans have slip alowed dependent on temp. The hotter the motor, the less slip. If you were running in 4lo on a trail and come upon water, the clutch will most likely not be slipping much. Had one in my old yj, it slung :dung: everywhere. Then the heat from the motor would bake it on. We have a lot of clay here, that stuff will not come off once it's baked on. Thanks for this topic, I just like using the :dung: smilies anytime I can!:D
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lol that icon looks like a tird haha thus the used toilet paper comment you left
 
You can shake a tree and electric fans will fall on you They go cheap at junk yards, because they pretty much never go bad. The motors are sealed and will take an insane beating, and about the only thing that messes them up is breaking a blade, which is pretty tough to do. You can make just about any size fit easily with some simple brackets, and a temp and remote kill switch. In the unlikely event of a temp sensor going bad, you can flip the remote and start it up. Cross water, and use the switch to kill the power to the fan.plus, you don't have to listen to that damn fan blade whirring away in there!
 
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