With buggies for sand and hill climbing you need instant RPM and light weight. Go with the Hemi, or a small block Chevy. The Cummins would be way to much baggage for haulin around in the sand.

John

 

eBay has quite a few variations, even a couple with P-Pumps on em. One is setup to run an intercooler, and has an odd shutoff solenoid mount on it, the other is a non-intecooled setup. They are awful purrty, but so is the price.

 

I love the smell of diesel.....but smelling it all day while on the trail in a buggy would suck.....not to mention the noise.
I say use a fuel injected chevy V8...every parts store in the world carries Chevy v8 parts, so your weekend never gets cut short from lack of parts

 

I also think that a 4BT would be a good choice.

Only problem I can see is that they shake pretty bad at an idle. Last company I worked for had a 1 ton van with a 4BT in it. Originally had a 460 Ford someone blew up. It would run at 80 no problem with the 4BT, only problem I saw was at an idle at a light it shook the van so hard you couldn't see anything through the mirrors.

 

http://youtube.com/results?search_query=cummins+buggy

 

I saw a sand jeep in a mag a while back that had a 400+hp 4BT. In the article they said they had to dial it back to around 350 to make it streetable because the power hit to hard. I don't know much about rock crawling, but it would seem like a hard boost hit might cause some problems.

 

I have ran across two 4bt's, a poltrey company used them on mobel cooling fans,(hooked to an airplane prop). They had to take them off and replace them with emmission compliant motors. Both complete from pumps to turbo's. Took alittle time to find them but free was worth the wait. I got an old beat up 80 1ton surburban with a TH400 and 410's waiting for one of them(mud buggy, hunt'n truck). I'm think'n about an half ton 2wd road truck for the other. theres a 4bt web site/forum to get more info.

 

4BT! A 4BT in a International Scout gets 36 MPG! (as seen in the re-power forum over on the TDR)

The 4BT has PLENTY of torque, My roofers have huge 20k lb all terrain forklifts (4WD 4WS) That can jam around the jobsite with 10k lbs of tile on the fork.

 

no brainer-6bt 1st gen

http://www.youtube.com/watch?v=Fh45CBDc5iw

 

yea but the weight is so heavy tho with a 6 bt

 

Sounds like the lull forklift I've used a few times... Wonder if they have a 4bt? They had good power.