these are the stock 2010 truck specs
GM 6.6: 365 hp/ 660 lb-ft
dodge 6.7: 350 hp/ 650 lb-ft
ford: 350 hp/ 650 lb-ft

 hmm i guess you are right lol. the old d-max didnt haev that much power. but i like it:P I want to throw a d-max in my truck check her out

 i though i saw that up for sale the other day. i might just be going crazy though. that would be a sick conversion though

 yea shes for sale lookin to get a diesel ro a biger truck

 stick with cummins for now, until they fix the gasket issues on d-maxs,

 The problem with the head gaskets was only on the LLY duramax that was in use from 2004-2005. It was fixed on the LMM in mid 2006.

 cummins can get more power for cheap, cummins always wins, my truck will be a gmc dually with a cummins in it! duramax's suck.

 there isn't anything wrong with the duramax, there far better than the newer power strokes. although the 7.3L powerstroke was arguably the best V8 diesel ever to be put into a light truck.

 lol, any v8 diesel sucks, just a converted a gas into diesel, except the newer duramax. cummins are actually a specific design that works, v8 diesels have problems, coincidence? i think not.

 what about the mack v8's and the powerchoke/international v8's. and all the duramaxes have been diesel specific

 The only V8 diesel that was a converted gas block was a diesel made for oldsmobile back in the 70's. Every other V8 Diesel has been purpose built. get your facts strait.

 hick, the Inline 6 4.0L is just a smaller GAS version of a cummins basically..a 7.3L International Powerstroke was built for DIESEL not GAS. and a cummins in a d-max. good luck with that wannaabe dodge

 actually, i know a mechanic who worked in the older dmaxs, they actually were converted v8s really. i wasn't talking about mack v8s cuz i didnt even know they made one. and powerstrokes, are pretty well a fail for ford, i dont see anything great about them at all. they may have power but that comes with problems down the road. powerstroke was diesel specific yes, but not the greatest idea for int/ford. and the old diesels in old chevs were shit because different metals, snapped the crankshaft because they were for gas motors, and they blew valve seals. just a failure motor (6.5l,6.2l) like what you have in your truck matt, your lucky its still living. and what 4.0l inline6 are you talking about? which vehicle is that in?

 You are actually almost as dumb as hugehucker.

 how? lol, im not as stupid as you think. considering im getting a 78 gmc that was converted to a gm 6.5 diesel and converting it to cummins because the crank snapped in the old motor. and the valve seals were already going when it snapped.

 well thats because GM Diesel Motors Have SO Much POWER!!!!!!!!!!

 wrong, gas v8s have 4 main power points per rotation, diesels have alot stronger pulses from torque, the stock crank could not take that. and the valve seals went from the higher heat diesels produce at fuel ignition.

 also gm diesels are gutless, i have one in my dump truck, no power and head gasket leaked bad, but stoppped for some unknown reason. and it doesnt like to start any cooler than 10' celcius because of no glow plug. block heater doesnt help at all.

 so your telling me. your 16 years old, you have a DUMPTRUCK, getting a 78 GMC with a cummins in it you are a MASTER Mechanic on diesels. and your the smartest kid around right?

 actually just turned 16. and yes, i have a 86 gmc 65 series dump truck. and im getting a 78 gmc one ton, putting a cummins in it and making it 4x4. then making it twin turbo as a daily driver. and im not a master mechanic, im learning as i go. my dad has taught me everything i know, he knows alot about diesels and what problems they had, because he had to deal with them when he had those trucks.

 you also have one of the 350 gassers that were converted to diesel which are gutless. i'll admit that the 6.2/6.5 and previous are also gutless, but the duramax.. i think not

 d-max have wicked power. and these are ALL your dads trucks i garuntee.

 wrong dump truck is mine, and im getting a one ton to put a cummins in. my dad owned the old 6.2 and 6.5, both shit, my dad now owns a dodge one ton with a cummins, gretest diesel truck hes ever owned. i know the early dmaxs had problems, im not sure on the new ones but i can find out, my neighbourly friend has a gmc 3/4t with one, he knows alot about them to, but he barely drives that truck. and the only way you can get wicked power from a dmax is to upgrade valvetrain and cam then twin turbo and chip it, but thats alot of cash, cummins you just put a turbo, turn fuel screw, grind fuel plate, bigger injectors and you have 400hp and 1000ft lbs.

 i hate to quote the hangover, but you really are almost too stupid to insult.

 Ok, so here it goes. As previously stated the only Diesel that was a converted gas motor was an in house motor made by GM for Olds in the 1970s. The 6.9L idi, 7.3L idi and 7.3L Powerstroke were all great motors. The reason the Powerstroke started to go downhill was when emissions laws became tighter and they had to scramble to build the 6L which was a disaster of a motor. The 6.4L is a much better motor, but the 7.3L is still better, im really anxious to see how the new 6.7L in house diesel from ford preforms. As for all V8 Diesels having problems, of course in the first production year or two of a motor there are going to be bugs, its impossible to get a perfect motor the first time. this explains the 6.0L and the first 6.6L duramax. The reason the 5.9L Cummins was good from the get go was because it was around before it was put in the dodge ram and basically unchanged until 1998. this also explains the ford IDI motors, they were in production before they went into any ford pick up. As for all GM diesels being gutless, your talking about an old motor. All older diesel motors are gutless, 7.3, 6.9, 12 valve 5.9, 6.2 and 6.5 are all slugs from the factory. As per your last comment about making big power from a Dmax and a cummins, Throw an intake, exhaust and chip in any newer diesel and you will be making over 400hp with the chip turned up. If you do a valvtrain/cam as well as a chip and twins in a dmax you will be making some serios power but you arent going to have the fuel to go with all that air being pushed through the motor by the twins. You'll need a set of big injectors maybe dual CP3 kit as well as a big lift pump. The only cummins motors that you could do the fuel pin/fuel plate on was the 12 valves that were mechanically injected. the 24 valve brought with it the VP44 injection pump which was electronic. thus ending the days of being able to just throw in a fuel plate on a P pump or turn a screw on the VE pump.

 ditto

 i agree with everything in matt's last comment.

 the 12v was not sluggish from factory, they could squeal tires no problem, those motors are bulletproof. and obviously in dmaxs the injectors and pump would have to be upgraded. the 98 cummins (vp44 pump) was shit, those pumps had to be switched to the p-pump from 12 valve or newer common rail. and your wrong about chip, exhaust, intake making only 400hp, my dads old 04 dodge 3/4t was stock, put a chip in it and bam, 505horse and 1100ft lbs of torque, would break tires loose going 120 on highway, thats power and yes the old diesels were switched olds motors but the first dmax was a converted v8, this was coming from a gm diesel tech at the local dealership, and he knows his shit, he would never own one, he actually owns a 12v dodge done to the tits 800hp 1400ftlbs trq. and true fact from all the diesel guys i know. all ford diesels have had some problems, same with dmaxs, the only reason my neighbour has one is because he got a discount on it as he works for gm, or he would be in a dodge. and in m county of 16g there is 3 powerchokes, 4dmaxs and over a hundred cummins, no word of a lie, anything from 89 12vs to brand new 6.7s

 -I Don't know what 12 valves you've driven. Stock first gens are the most sluggish of the old diesels.
-The VP44 pump really isn't as bad as people make it out to be. There are several high horsepower 24 valves that come into my work still running the stock pump at over 600rwhp.
-Read what I said about the chip/exhaust I said all motors will be making "well over 400hp".
-Total bullshit about having 505hp with only a chip. There is no chip that will add almost 200 horse without upgrades to the fuel system and intake.
- The duramax introduced in 2001 was a brand new purpose built motor designed from the ground up by Isuzu for GM.
I have been working on Diesel motors since I was about 12, When I was 16 I got a job at PDR, I've been a full mechanic for the last 18 months, I spend 9 hours a day working on Duramax, Powerstroke and Cummins motors. I don't really know what to say to you other that you really do not know what the f*ck you are talking about. So please get off your high horse and realize that you do not know all, nor does your father or these GM mechanics that you seem to adore.

 i know a guy that has a 91 dodge, it has 900000k on it, only replaced clutch once and he can still roast the tires on it. i didnt say all vp44 pumps were bad, some had major problems. and my dads truck dynod 415hp at the wheels, which is roughly 505 at flywheel considering you lose 15%-20% in an automatic tranny. with only a chip, mind you the egts were up there. but the chip went bad and wouldnt let the truck start, i can find out the name, its not a normal name. i have seen the 2001 dmaxs. they look exactly like a converted motor, i have seen the blueprint for the motor, same design as gas. and i may be 16 but i do know what im talking about. jus because your a mechanic doesnt mean your right. i have proven mechanics around here wrong, even certified gm employees, they are all idiots. i know my way around a 12v and bud, im not on a horse, im in the seat of my dads dually, many horses.

 http://yourargumentisinvalid.com/
I am far to hungover to make an intelligent reply at the moment.

 i have seen the 2001 dmaxs. they look exactly like a converted motor, i have seen the blueprint for the motor, same design as gas

Is really all I can say. You've made an excellent case for yourself bud. How could anyone refute that argument?

 There is no way that 900,000km all he has replaced is a clutch. The 12 valve cummins makes a whopping 160hp at the flywheel that's about 130 at the wheels, hardly enough to roast the tires. Unless your talking about a brake stand, which my reply to you is, what vehicle cant do a brake stand?
- If you prove GM mechanics wrong because "they are all idiots" how come you were so dependent on things they told you in previous comments?
-You clearly said "the 98 cummins (vp44 pump) was shit, those pumps had to be switched to the p-pump from 12 valve or newer common rail." and besides as far as I know you cant make a pre 2003 motor with the VP44 pump a common rail.
-415 hp sounds alot more reasonable with only a chip.
- The fact that the duramax block is a V8 is about the only resemblance between it and a gas motor. To my knowledge all gas motors from GM have been push rod motors, Duramax is a 32 valve DOHC. If it were based on a Gasser it would be alot harder for it to handle over 1000hp, 1800ft/lbs and 80psi of boost.
I'm not saying that being a mechanic makes me god, Hell I learn something new every single day at work. All im saying is you really need to take a step back and realize that you really dont know as much as you think you do. I have proved you wrong on ever point you have made in your last 6 or so comments.

 you can tell him that he has to replace more than that to keep his truck running, but the odometer is probably over that now, he takes care of it but uses it as a hard worked farm truck. and im not dependent on previous posts, how could i be? i cant even read properly. you can convert a vp44 to common rail, it just takes alot of work and money but can be done. you havent proved me wrong on much, and i have proved you wrong too, the chip added 180 hrs over the stock 325 on my dads CR, but as far as i know thats only added at the motor according to the dyno numbers. and srobinson, you havent contributed anything to this or proved anyon wrong so that shows you know alot about diesels.

 Okay, im not takign sides, BUt Mr. Jenkins seems to knowwhat he is talking about and he is definitly owning you, you have some good arguments yes. but matt has a lot more on thisshit than yourself. also these are getting annoying. Now. a DURAMAX is not a gas to diesel conversion. and a cummins has lots of power too etc. give it up lol it all comes down to NO matter what diesel you have. The damn motor has alot more balls than any gas truck

 lol im gettin sick of it too but im not gunna sit here and look like an ass, and your right, diesels are the way to go, no matter what the motor is, as long as its done right, and BUILT NOT BOUGHT

 yeah you were looking like an ass

 After closer inspection of a Duramax today, I have concluded that it is a push rod motor as well, the 4.5L duramax for the 1/2 ton trucks is the DOHC, my mistake.

 lol no problem. we all make mistakes when we are offended or think we know what we are sayin, i admit i said some wrong things to that i now know are wrong. and no offense, but haley you havent contributed anything good to this convo so fuck off.

 A guy called into my work with a 93 Ford IDI with the factory turbo, he wanted a south bend clutch that was good for 700 horse for his truck. he also wanted a set of twin turbos and he wanted to convert it to an electric injection pump. I politely told him he was wasting his time.

 HAHA, what a waste. that would cost him over ten grand by the time it was said and done, i would buy an old dodge 12v with p-pump and go from there, more reliable and streetable.

 cummins is not dodge... or mopar... and mopars are gay cars

 ....who said cummins was dodge ??....or mopar??.....and theyre frigin wicked!

 the cummins is actually a ford engine, which they leased out because they said " who would want a 6 cyclinder full size" of course they ended up terribly wrong. so dodge got the lease to use it

 cummins and ford have no business relation what so ever.

 look into it, ford made them.

 no, you look into it. they do not.

 Ford owns a small portion of cummins and they do use them for their bigger trucks

 no, back in the 90s they owned under 12% of cummins stock. They have long since sold this and moved on.

 you can still get them in the 650 trucks though. and by small i did mean small. like own a share of stock in them

 thats because dodge has the contract for light duty trucks, medium and heavy duty chassies are fair game. ford has long since sold what little stock they did have currently they own no cummins shares.

 but ford is still putting cummins in their trucks. and we can both agree that huge hucker is an idiot

 He drives a 6.5L of course he's an idiot.

 hahaha

 yea matt, i bet its nicer than whatever you drive.

 Me: 7.3L powered F250
You:6.5L powered K2500

lets let everybody else decide that.

 get a fucking turbo you loser

 poop

 I dont have $2000 laying around or the time to install it. plus its a tired old motor, im afraid adding a turbo would just cause me problems down the road. the most it ever hauls is a camper and a trailer with 2 quads and its always done fine.

 word. put a duramax in it like i'm doing with my 6.5

 cummins are better, way more reliable, and stock motor can put out 700hp/1400ft.lbs of torque!

 If I dont buy a second gen cummins this summer I'm dropping a 12 valve in my truck.

 sick

 do it man, way worth it.

 both cummins and duramax can comfortabley make over 700hp.

 i think we can all agree the powerstroke is weak shit

 nothing wrong with power stroke now.... first year of the 6 litre was crp but other than that all the new diesels seem pretty awesome, im jeleous

 all companies are starting to pick up their shit but cummins has had it since the start in dodges, except the vp44 pump but its an easy fix. you dont see many powerstrokes with that power, alot of those ford diesel guys actually put cummins in their trucks lol

 ignore, see above