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Unread 09-04-2013, 05:46 PM   #1
Fellows45
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V8 swap thread. trying to ditch the ECU

Hi all,
I just picked up a rebuilt ax15 for my v8 swap! now i'm off to look for a motor.

I had a few questions about motors to put into her.

(since i'm trying to ditch the ecu, also the only wiring I want is to the gauges and Radio) what motors will drop right in and run off a good old-fashioned carb and ignition? do the AMC 273/318/340/360 V8's fit the bill? if not Ive heard some of the chevy, GM, and for V8's might also work.

Help is greatly appreciated and I will also be starting my own build thread soon!

Thanks so much all ,
Fellows!

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Unread 09-04-2013, 08:12 PM   #2
Fellows45
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bump!
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Unread 09-04-2013, 08:21 PM   #3
captainauti
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what are you looking for in the end. whats your budget? what motors are you familiar with working on? personally, id do a 5.7, carbed, with a yl breakerless mallory distributor. least amount of wiring. or find a complete marine 350 carburated. i put a marine in my jeep and in a malibu. you can find them fairly cheap, and are very basic, no emissions, and no government bs. and the build hp all the way up the rpm band.
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Unread 09-04-2013, 08:29 PM   #4
Fellows45
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My budget is 1500. And that doesn't include what I sell my 2.5 and ax-5 for.

I Just want an engine that is really basic and has minimal wiring.

does the 5.7 have a computer? and are there any specific years that it came out of?

And as for a marine engine, I dont know much info about them, I just want to make sure I can find a bell housing for whatever engine I do end up getting.

I am just trying to find a simple v8
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Unread 09-04-2013, 08:38 PM   #5
JeepinJeremy
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good luck no way 1500 bucks is enough for this swap. Keep your jeep as is or sell it and buy one already converted.
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Unread 09-04-2013, 08:59 PM   #6
Fellows45
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I guess your right, alright ill just have to put 3000 in for the swap and do it right, I was going to try an go cheaper, like trying to find a decent junkyard motor.

Now where does that put me?
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Unread 09-04-2013, 09:18 PM   #7
4wheelex
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Just started my v8 swap.. I found a whole doner truck drove it on my trailer for $ 400.. It was a ford w/ 302 and auto. I bought the adapter kit from advanced adapter and my t case bolted right to the tranny ( which was rebuilt using the the tail shaft adapter and output shaft from the kit).. I went through the engine, and done some minor modifying. The kit also came with engine to frame mounts(weld on) and inside the frame headers. Using a Mallory dizzy and a gm style one wire alternator. Should be a very clean installation.. The 302, c4 tranny and np231 as a package is 8" shorter than the 6 banger set up and will set the engine 1 1/2 inches farther forward from the firewall.. Ford chevy dodge I have no preference but I have tons of sbf stuff (love my stangs as much as the jeep) that's why I went sbf having a whole doner vehicle has been nice and I don't plan to get rid of it until I'm done with the swap.. But watch your dollars depending on what your wantin in the end is how much you are gonna spend.. So far I'm about 3800.. And that's not including the axles or suspension that I have installed getting ready for this swap!! Good luck and keep us posted!!

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Unread 09-04-2013, 09:55 PM   #8
czjeeper
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OP those are MOPAR engines! Not AMC.
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Unread 09-05-2013, 04:50 AM   #9
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My understanding is that the block dimensions of the 273/318 etc family make them harder to put into a small space than, say a small block Ford

This is one of the reasons the Sunbeam Tiger had a Ford engine even though Rootes was acquired by Chrysler.
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Unread 09-05-2013, 06:42 AM   #10
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go to junk yard, get a pre vortec 5.7, maybe $400, strip off all fuel and electrical to bare long block, leaving your tin. add edelbrock intake, 4bbl carb with mechanical choke, add mallory ylm distributer, only has 3 wires to it, one ground, one +, and one off the (-) on the coil. no vacuum, all centrifugal. use a one wire alt, and you have minimal wiring. then of course you need starter circuit, and guages. but very minimal. pm me if you want a schematic. i have one here.
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Unread 09-05-2013, 07:08 AM   #11
czjeeper
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Quote:
Originally Posted by jay-h View Post
My understanding is that the block dimensions of the 273/318 etc family make them harder to put into a small space than, say a small block Ford

This is one of the reasons the Sunbeam Tiger had a Ford engine even though Rootes was acquired by Chrysler.
Not at all true.
There has been a large amount of Jeepers putting the Dodge/Jeep 5.2/5.9 in YJ's recently.
They fit just fine, without any issues.
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Unread 09-05-2013, 09:09 AM   #12
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SBC's has been done 1000 times and parts are a dime a dosen. I vote a Chevy 350 aka 5.7L.
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Unread 09-05-2013, 09:10 AM   #13
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Quote:
Originally Posted by czjeeper View Post
Not at all true.
There has been a large amount of Jeepers putting the Dodge/Jeep 5.2/5.9 in YJ's recently.
They fit just fine, without any issues.
This. More than enough room in there to fit either the 5.2 or 5.9 more than comfortably.
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Unread 09-05-2013, 09:38 AM   #14
SeanB95YJ
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Quote:
Originally Posted by Xpress View Post
This. More than enough room in there to fit either the 5.2 or 5.9 more than comfortably.
yes... heck I've seen motors put into YJs that I NEVER would have thought would fit.... 6BT, Dodge V-10, Big block chevy's, etc.

the only thing I haven't seen (tho there's probably SOMEONE out there who has) is a Hemi.... and I mean a REAL Hemi (AKA the huge mopar powerhouse )
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[/COLOR] [COLOR="Red"]swap/build thread: [url]http://www.jeepforum.com/forum/f22/after-almost-4-years-finally-my-own-build-swap-thread-1542284/[/url][/COLOR][/FONT]
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Unread 09-06-2013, 05:33 AM   #15
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Quote:
Originally Posted by SeanB95YJ View Post
yes... heck I've seen motors put into YJs that I NEVER would have thought would fit.... 6BT, Dodge V-10, Big block chevy's, etc.

the only thing I haven't seen (tho there's probably SOMEONE out there who has) is a Hemi.... and I mean a REAL Hemi (AKA the huge mopar powerhouse )
HEMI smemi, I want to see a Cummins lol
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