"S65" (granthp)
10/28/2016 at 16:45 • Filed to: CUCV, Questions, Chevrolet, General Motors, Military Spec
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"S65" (granthp)
10/28/2016 at 16:45 • Filed to: CUCV, Questions, Chevrolet, General Motors, Military Spec | 0
| 25 |
Cayman for scale
I’d take out the 6.2 L Detroit Diesel V8 and swap in a 350, specifically a LS1. These were based upgraded K5 Blazer platform, so Blazer parts should fit. I wouldn’t repaint it, I think the camo looks cool. Also, where would one find a retired military vehicle?
TheHondaBro
> S65
10/28/2016 at 16:49 |
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That’s a Porsche, not a Chevrolet CUCV.
HammerheadFistpunch
> S65
10/28/2016 at 16:51 |
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new tires and shocks. Im not messing with a 24v to 12v conversion.
MrDakka
> S65
10/28/2016 at 16:52 |
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Add a roll cage and take it to a demolition derby. You can find them at government surplus/liquidation sites
sm70- why not Duesenberg?
> S65
10/28/2016 at 16:55 |
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I would repaint it dark blue, solely because I think driving around in a camo one of those makes you look like some crazy militant wackjob. Other than that, not much.
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HammerheadFistpunch
> sm70- why not Duesenberg?
10/28/2016 at 16:56 |
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agreed.
Snuze: Needs another Swede
> HammerheadFistpunch
10/28/2016 at 16:56 |
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24v to 12v? They weren’t a Cummins. They used the old 6.2L Detroit Diesel. It’s loosely based on Chevy Small Block Architecture (though not the same as the Olds 350 diesels). It’s in the same family of engines that was used in the various Hummers and C/K 1500-3500 pickups from the 1980's up until about 2000. In fact my folks have a 98 2500 4x4 with the 6.5L turbo version that’s still running pretty good almost 300k later.
vondon302
> S65
10/28/2016 at 16:57 |
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I spend way too much time on here.
MasterMario - Keeper of the V8s
> Snuze: Needs another Swede
10/28/2016 at 16:58 |
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24 volts, military vehicles generally run 24 volts, not 12 like standard vehicles
Jordan and the Slowrunner, Boomer Intensifies
> S65
10/28/2016 at 16:58 |
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Isn’t the LS1 like a 346?
I would swap in the only engine that really matters, the engine that moves America, a Cummins. 5.9 12V Intercooled 6BT with a higher rpm rated governor spring, bigger fuel pin, and dowel pin fix. And keep the rest stock.
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HammerheadFistpunch
> Snuze: Needs another Swede
10/28/2016 at 16:59 |
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What mastermario said, its a military thing, not an engine thing.
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Snuze: Needs another Swede
> S65
10/28/2016 at 17:00 |
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Swap to a 96+ 6.5L Turbo diesel (same engine family, basically a direct bolt in) with a few little goodies from Heath Diesel Performance. It won’t reverse the earth’s rotation about it’s axis like some of it’s contemporaries but it will make a respectable 250HP/500+ Ft-lbs. It’s also way, way more reliable than the old 6.2L.
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Snuze: Needs another Swede
> MasterMario - Keeper of the V8s
10/28/2016 at 17:04 |
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Ahh, good call. I didn’t realize these were 24V. I was thinking engines, because in Dodges it’s not uncommon to see guys actually swap older 12 valve mechanically injected engines in place of the newer 24 valve electronically injected engines.
Also, reading the wiki, it’s a hybrid system where it’s 24V under hood but the rest of the truck runs on 12V. My parents truck is similar, it’s got 2 batteries, and a relay system to apply 24V to the starter, but 12V to the rest of the truck. Not sure how the charging system works, though, maybe be different than the CUCV.
Shift24
> S65
10/28/2016 at 17:05 |
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I would windup the 6.2L diesel because torque and those Detroit were actually decent and reliable. Then throw a mild lift and bigger tires and go mudding.
Also side fun fact I learned recently that I guess I just never payed attention to, the LS1 was a 5.7L but was not a 350 cu in, it was technically a 346 cu in.
You can find them on Military surplus auctions but they are getting rarer.
CCC (formerly CyclistCarCoexist)
> S65
10/28/2016 at 17:06 |
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Seam weld body, beef up chassis, put in an Dakar-level AWD system in there, and have a locked diff in the back.
Also, a LS1 with a blower. Roll cage as well.
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Snuze: Needs another Swede
> HammerheadFistpunch
10/28/2016 at 17:06 |
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Good call, I was thinking of the guys who will replace a new 24 valve cummins for the older 12 valve mechanical units.
Also, looking at the wiki, they say it’s a hybrid 12/24V system that uses 24V underhood, and 12V in the rest of the truck. My parents truck is the same way, it’s got dual batteries and I’m fairly certain uses a relay to provide 24V to the starter, and 12V to the rest of the truck.
Takuro Spirit
> S65
10/28/2016 at 17:09 |
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Change the gearing, first off. I think they top out at like 65mph. Or less. Or so I heard. Online.
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HammerheadFistpunch
> Snuze: Needs another Swede
10/28/2016 at 17:09 |
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ah, well in that case its nice. another interesting tidbit about these is that they have a nato receptacle on them that can be used to jump start everything from generators to main battle tanks. also, they run on jet fuel (more or less)
deprecated account
> S65
10/28/2016 at 17:11 |
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6.6 Duramax swap, bumper delete, skid plates, paint it satin black.
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Snuze: Needs another Swede
> HammerheadFistpunch
10/28/2016 at 17:19 |
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Yeah, it’s a diesel, and kerosene, JP-5, all very similar. And the wiki also mentioned the NATO receptacle.
The problem is that 6.2L. They are absolute dogs, they make something like 155HP and 250 ft-lbs. And they had a lot of issues with cooling, block cracking at the main bearing webs, and crankshafts snapping if the harmonic damper wears out. The early 6.5L engines also had cylinder head cracking problems. The good news is the 6.5L turbo is almost a drop in replacement, aside from the turbo plumbing. The 96+ engines had a new head casting and revised cooling system, and made 195HP and 425 ft-lbs. AM General went on to revise the engine and offers and “Optimizer” crate engine that makes 215HP and 440 ft-lbs. There’s also a company called Heath Diesel that makes some upgrades for these things, and you can get a reliable 250HP and 500+ft-lbs out of them. The only thing to watch out for is the PMD (Pump Mount Driver). It’s a little ECU that works the hybrid mechanical/electrical fuel injection pump, and its mounted directly to the pump and has a tendency to overheat. You have to get a relocation cable, bracket, and heatsink and move it up to the top of the inner fender. Otherwise they are pretty good to go. The only problems ours has ever had, aside from the PMD issue, is the electric booster fuel pump went out, and the injection pump needed a rebuild at around 200k miles. Some people say they have a reputation for eating fuel injectors but ours are all original.
Rykilla303
> S65
10/28/2016 at 17:35 |
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Leave it alone. LOL.
Too many of these poor trucks get modded, need a few to stay original. (I keep my 78 k15 almost all original, save for a lift kit and tires)
Thomas Donohue
> S65
10/28/2016 at 17:52 |
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I’d lower it, drop in a mid-engine flat 6, and paint it yellow. Just like they did in the picture above.
CaptDale - is secretly British
> S65
10/28/2016 at 18:45 |
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The only engine that truck deserves
TheD0k_2many toys 2little time
> S65
10/28/2016 at 19:28 |
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keep it diesel. Swap in a 6.0 powerstroke and manual trans
Die-Trying
> S65
10/28/2016 at 19:50 |
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if i were modifying for the sake of modifying, i would...........
1, swap in a 250 inline 6( more torque than a 454 at idle)
2, manual transmission x2...... i would put TWO truck 4 speed transmissions inline of each other, nose to tail, so that i had STUPID reduction. sm420 into sm465 into a np205 transfer case......... 7.0x 6.50x 2..........
3, get 1 ton axles, with deep gears. 4.88, 5.20?
4, put some grippy tires on it in the 35 inch tall range.........
5, just enough spring lift( macdonalds arched single leaf) to clear the tires...........
6, pto winch..........
7, drill pipe bumpers, front and back........
8, decent rollbar halo.........
.
BUT those, stock are downright impressive by themselves............
KusabiSensei - Captain of the Toronto Maple Leafs
> S65
10/29/2016 at 08:00 |
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Find an LB7/LLY/LBZ Duramax and drop that in along with the engine compartment wiring harness.
Now your engine compartment is safely on 12 volts DC (Because parallel dual batts on a Dmax), and you have enough power to get out of your own way.