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View Full Version : 383 in a YJ


OverkillYJ
03-04-2006, 06:33 PM
im putting a chevy 383 in a 90 YJ, i want to know what everyone else has done for trans and adapters. i talked to this one place and they could spend $6000 just on adapters... what have you guys done? ive heard of a few people using corvette trans? what company makes adapter kits? etc?

sj-x 500
03-04-2006, 06:52 PM
why not just get a whole chevy drivetrain.. tranny, t-case, and axles. heep axles won't hold to a 383. and stuff all that in the heep

u2slow
03-04-2006, 07:03 PM
Use a 88-91 SM465/NP241 combo from an IFS truck. [36]

J20
03-04-2006, 08:31 PM
good luck with aircare.........is it going to be just a trail rig? injected would help with aircare

nykoma
03-04-2006, 08:38 PM
[36] [36] [36] [36] [cheers] [cheers]

Taxidermy
03-04-2006, 08:44 PM
[36] [36] [36]

OverkillYJ
03-04-2006, 09:47 PM
I dont need to worry about aircare, if it dont pass, ill insure it at our house in Whistler... i looked into fuel injection, but im not willing to spend $4000 on a manifold...

Mr Vic
03-05-2006, 12:00 PM
for $4000 i would think that you could find a wrecked chev truck as a donor to take the engine/trans/axles and t-case from, if you get 88 or newer chev truck it would efi. Novak adapters has an adaptor to mate alot of chev/ford/dodge trans to the jeep t case and for around $500 US. but i do not how long a 231 tcase would last with 350+ HP that your 383 would produce

OverkillYJ
03-05-2006, 09:31 PM
what t-case and trans would you guys suggest? im eventually going to put dana 60s on it... do you think the stock axles will last very long?

Buck Master
03-06-2006, 01:13 PM
You can get an after market fuel infection unit for $1500.00 bucks. You don't need to spend $4000.00.

OverkillYJ
03-06-2006, 04:17 PM
but i need a manifold then too, ive looked into it a lot. but thanx

u2slow
03-06-2006, 05:16 PM
...or propane. ;)

mUD uCKeR
03-06-2006, 06:27 PM
Just use the chevy drivetrain to match. That's what i did. Older stuff is passanger side drop, newer stuff is drivers side. Everything you need you can buy as stock chevy stuff.... no need to spend all the $$$ on adapters. After having a 350 in my YJ.... all i can say is get it as far forward as you can, and find the best rad you can fit in it... Mine seems to have problems overheating, and my rear driveshaft is only 20" long. with 38" boggers.

OverkillYJ
03-06-2006, 06:49 PM
ok cool, what do you all think for axles? stock ones last very long? get dana 60s? or what?

Explorer guy418
03-06-2006, 06:57 PM
stock ones with last a few runs maybe:D go big or go home.

Nutbar
03-06-2006, 07:03 PM
The stock stuff doesn't stand up to abuse with a 4.0 I6 so it will never take a 6.2 V8 I ran a 383 in my cj and would still blow up D44s so now I run a Chev 14 bolt full floater in the rear and a high pinion D60 in the frt. If you want a short tranny tcase combo that is bullet proof (this is again what I run) Chev 465 4spd(its the 4spd with the granny low 1st gear) from late 70s chev that had a 205 on the back and get the Advance Adaptors short adaptor to the jeep Dana 300 tcase(the Dana 300 is a gear driven cast iron tcase) the only problem for you is the Dana 300 is a pasenger side frt drive so won't work for your stock diffs but if you are changing diffs anyway you can always get one with a passenger side pumpkin.[cheers]

u2slow
03-06-2006, 07:58 PM
Some ideas here... notice the full-width rear axle, and large backspacing on the wheels.

http://www.geocities.com/yj3qtr_ton/34tonYJ.html

Countryboy350
03-06-2006, 09:22 PM
I would put a d60 in the back!!!

Explorer guy418
03-06-2006, 09:28 PM
and a D28 in front... eh tommy...

OverkillYJ
03-06-2006, 11:08 PM
thanks for all your imput... any ideas where i should look for this stuff... like any particular junker? get the parts fixed up or what?

fourplay
03-06-2006, 11:30 PM
The stock stuff doesn't stand up to abuse with a 4.0 I6 so it will never take a 6.2 V8 I ran a 383 in my cj and would still blow up D44s so now I run a Chev 14 bolt full floater in the rear and a high pinion D60 in the frt. If you want a short tranny tcase combo that is bullet proof (this is again what I run) Chev 465 4spd(its the 4spd with the granny low 1st gear) from late 70s chev that had a 205 on the back and get the Advance Adaptors short adaptor to the jeep Dana 300 tcase(the Dana 300 is a gear driven cast iron tcase) the only problem for you is the Dana 300 is a pasenger side frt drive so won't work for your stock diffs but if you are changing diffs anyway you can always get one with a passenger side pumpkin.[cheers]

Mikey is the Jeep god [h] [h] [h] [h] . After talkin to him a few times, I stopped askin other peoples opinions on what i should do to my YJ, lol...And they way he drives em, he knows what they take for sure!!

[cheers]

Nutbar
03-07-2006, 12:59 AM
You can PM me or call me I have lots of jeep parts here for almost any Jeep- CJs, YJs, XJs, TJs, full size Wags and J10s and know where to source alot of conversion stuff, if its been thought of for a jeep I have probably done it at least once.
[cheers]
Mikey 604 657 2155

ottoman
03-07-2006, 01:54 AM
i got the tranny he's talkin about

OverkillYJ
03-08-2006, 09:01 AM
im going into the shop today where my jeep is... going to make the final decisions over the next week or so. thanx for all the imput, any more would be great.

OverkillYJ
03-09-2006, 10:03 AM
anyone know of someone who can make good roll cages, cheep? or a good bolt in one? i got a quote from one guy and he wanted $2500, i thought that was very steep.

redman
03-09-2006, 10:06 AM
NUTBAR thats what hs does send him a PM

Nutbar
03-09-2006, 11:01 AM
I build cages and bumpers or pretty much anything you need built axle and engine conversions fuel injection installs and mechanic work
I am out in Maple Ridge.

OverkillYJ
03-09-2006, 02:20 PM
can you give me a ruff idea on how much a full roll cage that i can get a 5 point on would cost?

Nutbar
03-09-2006, 02:38 PM
Depending on how exotic you want to go I can probably do one for around 800 to 1000

mUD uCKeR
03-12-2006, 05:18 PM
Might be too late, but i don't think dana 44 is much good in the rear... i say definitly go to the 14 bolt / dana 60 / eaton rear diff.... Try and get a cab and chassis setup and it will be narrower for the jeep... 63" is what my eaton ended up as. i think stock jeep is 61" or something. I have had good luck with a dana 44 RR in the front so far.

OverkillYJ
03-18-2006, 08:01 AM
ok, ive got a few more questions... where should i put the exhaust out? on the sides before the rear tires, or out the back. im running two pipes. and secondly what kind of gearing should i put into it? im putting 37's on it. what are you guys running? and lastly... does anyone have some axles, tcase or tannie for me? d60 front (w/ discs) and 14 bolt rear. then for tcase/tranni, what nutbar suggested. thanx