ok tired of searching

a buddy is building a rockcrawler from scratch (tube frame)

he has 2 ford HP60's one has the axle tubes swaped, both spooled, both 7.17 gears.

he has a Spicer 18-X case

he has Hummer Wheels

he has 42" swampers

1) What Motor, his requirements...old school carb is fine, 4 or 6 cly, trying to keep it light as possible.

2) What Transmission his requiremenst...4-spd, w/granny

He is doing all this on a budget NO ADAPTERS

my inital thoughts were to use a flatty engine, tranny...anybody got a better combo ?

I am thinkin' Chevy Straight 6 w/SM420 behind it. Those 6s have good torque and are a pretty good engine. How good, Toyota copied it and put in the 'Cruiser! Not to mention they are fairly cheap and plentiful.

The ultimate combo:

Buick 231/T18/D18 ;)

The 231 weighs about 400Lbs
T18 150 or so

No adaptors needed if you use a Jeep T18 and follow Novaks directions on fitting the T18 to the Buick Bellhousing.

A flatty motor? WTF? straight 6 bangers are heavier than most V8's I would stick with a V6 Buick or Chevy. Good luck on the no adapter thing.

oldJeep

Buick 231, T-18, D-18

no adapters ?

sounds perfect

One note, to do this without adapters:
You have to have a Jeep CJ T18 and large hole Dana 18 for this to work. If you have a small hole D18 you can swap the guts out of your D18 into a D20 case.

BTW - I have a Jeep 79 CJ T18 for sale, but it's in MN

he has a large hole D-18, large shaft (1 1/4" ?)

now all i need to do is find a CJ T-18

thanks oldJeep

ooops just saw your note how much ????

can you ship ???

Brian

Just checked my PM's. It's already sold.

Personally, i would ditch the T18, swap in a Vortech 4.3 with the Auto that comes with it, throw in a 208 for transfer, if you want light weight, this will do it. Might b kinda spendy, though, maybe try a 4bbl 3.8 Buick with the bellhousing from the oddfire buick, and a T-18 (good luck finding one). So many possibilites for this, go with whatever you can find that you can afford. good luck on the bugggy.

well you were saying that your firiend wants to keep the weight down so why the front 60? the damn thing ways over 500 lbs. i would say get a light weight d44 w/warn shafts + ctm joints and use the extra $ for other things. judging by the engine size you are thinking of you would not break that diff.

if you want to keep the d60 why not go the ford 5.0 and np435 route???

The only granny 4sp that will bolt to the D18 with a factory adapter is the T-18/T-19/T-98. Anything else, (NP435, SM420, SM465, NV4500) is going to require an aftermarket adapter. T-18's with the factory adapter are fairly easy to come by, they're found in full size Jeeps and Scouts. All you do it swap the input shaft for a Ford input shaft and it's fairly easy to adapt it to just about any Ford, GM or AMC engine. I managed to mate mine to a Ford 2.3L 4cyl.

A light deisel like the four cylinder cummins and a T-19 tranny

Why would you want a heavy lumbering diesel in a lightweight flatty.
Ill bet grampa Jeep's 2.3 turbo would be a hell of a mill for a flatty.
A 4.3 Vortec is light and powerful with a good powerband.
But my favorite has to be the mill Im running. a 5.0 HO is affordable, compact for a V8, fuel injected, lighter than most any 6 cylinder, with more HP and torque.
Just an opinion, but I sure wouldnt spend the time and money for an engine swap into a seriouse off road vehicle without going with fuel injection. If you cant run on any angle your just another sputtering rig at the bottom of the hill.

Originally posted by H8monday
Why would you want a heavy lumbering diesel in a lightweight flatty.
Ill bet grampa Jeep's 2.3 turbo would be a hell of a mill for a flatty.
A 4.3 Vortec is light and powerful with a good powerband.
But my favorite has to be the mill Im running. a 5.0 HO is affordable, compact for a V8, fuel injected, lighter than most any 6 cylinder, with more HP and torque.
Just an opinion, but I sure wouldnt spend the time and money for an engine swap into a seriouse off road vehicle without going with fuel injection. If you cant run on any angle your just another sputtering rig at the bottom of the hill.

how easy was that swap, as I might be acquiring a YJ with a blown motor shortly :mad2:

Originally posted by schuss


how easy was that swap, as I might be acquiring a YJ with a blown motor shortly :mad2:


Its a very easy swap.
Its compact size lets you position it where you want in the engine compartment. No cutting the fire wall. Headers clear the frame rails. Plenty of room to run a stock 18" clutch fan from a Lincoln.
Its a great rock crawler engine.

he has 2 ford HP60's one has the axle tubes swaped, both spooled, both 7.17 gears

You sure I thought the lowest RC 60 gears were 5.38?

Originally posted by H8monday
Why would you want a heavy lumbering diesel in a lightweight flatty.
Ill bet grampa Jeep's 2.3 turbo would be a hell of a mill for a flatty.


Thanks for the vote of confidence H8! I'd love to be able to report to everyone that's it's the best motor out there for a flatty, but I'll reserve judgement until I actually get it running.:emb: I can tell you that I have owned Mustangs powered by both the 5.0L and the SVO 2.3L and the SVO powered one was a lot faster.

Straight 6? Those are not exactly light weight(as previously stated), if you are willing to put up with the weight of a say 258, then why not just bump up to a 360/t18/dana 20 combo, you can find the entire set up in a 79 CJ, this is what I would suggest. Then ditch the 60 for a built 44, which will get you back down to straight six weights.

-Tony

Wow thanks for all the imput...

he wants to keep the front 60 so he only has to carry 2 differant axleshafts as spares.

Grandpa... i like the idea of the SVO turbo 2.3L i assume Ford Mustang SVO ?

Diesel... we talked about that he actually used to have a Kaiser with a perkins diesel... not enough off the line power was his conclusion

Were there any 79 and older Jeep 4 cyl (easy to find) that bolt up to T-18,T-19, T-98 ?

anybody got a T-18,T-19, T-98; and a Dana 20?

Originally posted by redruM
Grandpa... i like the idea of the SVO turbo 2.3L i assume Ford Mustang SVO ?

Yup that's the one. I've got the '86 version, 200HP and 240 ft-lbs of torque. I adapted the T-98 to it myself. Details are here on my website. (http://www.jeeptech.com/oliver)

I don't think any 4cyl engines bolt up to the T-18, but it's fairly easy to adapt it to fit any GM engine including the 2.5L that was offered in Jeeps. Here's an article on Novak's site (http://www.novak-adapt.com/knowledge/ford_to_gm.htm) about how to adapt the T-18 to a GM bellhousing.

one thing about the SVO, do you have a problem with turbo lag of any sort? it would seem to me that turbo's don't make ideal crawler motors, but if they do, that opens up possibilities A LOT.

Originally posted by schuss
one thing about the SVO, do you have a problem with turbo lag of any sort? it would seem to me that turbo's don't make ideal crawler motors, but if they do, that opens up possibilities A LOT.

Don't know if it will be a problem crawling as I haven't got it running yet. I can tell you it was a bit tricky in the Mustang. Having the turbo kick in suddenly while trying to make it through a yellow left turn arrow produced some exciting moments.:eek: Climbing slippery hills without bogging down or losing traction was a challenge too. Eventually I got used to it and got where I could control it. Key is to listen for the turbo to spool up and then back off the throttle when you get the amount of power you are looking for (assuming that's less than full power). With a little practice you can get to where you can hold it at any boost level you need. Not sure if any of this is applicable to the crawlin world, but it worked in the Mustang.