Hey Guys,

Me and some guy (i swear.. he was as dumb as a box of stupid rocks)

He is tryin to tell me that there were a buncha Recalls and TSB's refering to the Duracrap (as he called it) and its bown headgaskets and warpedheads...

He said luminum doesn't hold up to the heat and compession and they are idiots becaus hey tried to use aluminum....I said..OHH thats why John Force and so on run Aluminum Heads..(yea i know they gt rebuilt..but not the head itself)

Then when I told him he's a F'in idiot and there is guys making 600hp plus and have 300k miles and run 12's and blah blah.. said yah they probably have been rebuilt alot...I was like...dude..pull your head outta your ass.And go drive your 93 Turbo Escort (lmao..who puts mone in an escort??):grd:

Anyways..WTF is this guys deal.....Please reply so I can make him eat eat this thread...Censored


Thanks Joe..ha:ro)

Yeah, we have been secretly switching them over to cast iron units for som etime, now. I sell a conversion kit that includes everything needed. I am using BBC heads and they bolt right on

You always can tell you are dealing with the mis-informed when they cannot refer to the engine by its correct name.... Duramaxipad, Duracrap, Powersmoke, Sicksliter, Sixleaker, Cummings.... Immediately disregard anything said by these people and delete it from your hard drive, it is just wasting valuable space...

Usually when I run into those idiots (usually diehard Ford or Dodge diesel guys) I just ask them if they know what the pistons in their trucks are made from, most have no idea it's aluminum. I then calmly explain the fact that the heads on our trucks are cooled just like theirs (of course) and just like their trucks the pistons are not cooled (accept a little by the oil sprayers), therefore their truck is just as likely to have a meltdown as ours are. (Wish I had more time to argue my point but I'm in the middle of swapping my heads over to cast iron).):h

Yeah, we have been secretly switching them over to cast iron units for som etime, now. I sell a conversion kit that includes everything needed. I am using BBC heads and they bolt right on
You guys have been using BBC heads? We have been using the older 6.0 iron heads from the gasser with an addapter plate, we thread the end of the injector and screw them into the spark plug hole. dynos around 830 rwhp at 7800 rpms, then it has valve float and just cant go any faster. Thought about doing some spring swaps to see if we can take care of that.

Wow lots of options. What I have been doing is putting the 6.5 heads on there and running the 6.5 pump and injectors to tone it down a little. Nice thing about using the 6.5 heads is they're made for a diesel so they're a little more stout. This way you don't have the duramax injector problems to deal with either.

pro400,

I feel the same way. I've heard it so much, my a$$hole could recite it.

I was always told that is what the aluminum inter-cooler was all about. It is special cooling for all that other aluminum stuff under the hood. :lol:

I've switched to titanium heads.

I've switched to titanium heads.
I heard about those, did you get pre production or have they been released?

I just got off the phone with NASA, talking to them about making my own personal carbon fiber/kevlar composite head design. Currently pat pending.

I heard that Porsche has lots of unobtanium left over from various racing programs - perhaps we can get heads cast from it. Adds lots of HP as well.

I melted mine before there were any exotic stuff released like the titanium. I didnt know about Erics secret head swaping procedure so beings I'm an IL boy I just whittled my own outa JB weld and made custom "o" rings for the head with bailingwire and then held the heads down with ducttape:grd:

And they say innovation is dead!

I just made a deal with a local wood carver.....

I talked to my Star Trek buddies and they've got "The brightest minds in the Federation" creating a new set of heads from duranium alloy. Once I install the new heads, dilithium crystals and matter/anti-matter chamber my truck should really fly. ):h

I have been smelting replacement heads from used pop cans and sand casting them in the back yard. Sometimes the heads don't flow quite right when the cat gets back there and uses the sand casts.

I figure all of this trouble will go away once I get the new carburetor installed on the truck.....

Did you know the Duramax has a gear driven water pump? If you break a serpentine belt, you can still drive the truck without danger of overheating. Did you also know that engine sensors would limit truck power if it starts to overheat and shut the engine down entirely well before there is any danger of a meltdown? Ask you buddy how far he can drive his Ford or Dodge before it overheats if he breaks a belt. The answer is not very far if he’s towing heavy. These are great trucks regardless of the useless twitter of morons.

I have some of the newest revision of aluminum. It is transparent. This way I can see what's going on inside my engine.

Thats not new, Scotty used transparent aluminun to make bulkheads for a tank to haul whales back from uranus or someplace like that .... didn't he?? :confused:
:damnit1: Jim how did we get stuck on uranus again!!! :Moon:

I recently made some iron heads, then welded the Censored 's down onto the block, no warping no head studs, nothing. IMHO the best damn fix for aluminium warping heads!!!!!!):h

How far you going to drive the Dmax without power steering, power brakes and the fan. Not very far. Later! Frank

I recently made some iron heads, then welded the Censored 's down onto the block, no warping no head studs, nothing. IMHO the best damn fix for aluminium warping heads!!!!!!):h
Why do you have to make up stories like this? Just to fit in? Peer pressure got you hu?

I love it when guys try to tell ya the heads are going to melt or warp. Especially when they have never read a phsyics book talking about the Coefficient of Expansion of metals, or Specific Heat, or Transfer of Heat, or Conduction Rates of metals. Or modern day head gaskets......

Very Funny stuff - I chuckled like a school girl. A lot of good ideas though - heck with all that replacement stuff. I heard there was a special incantation you could chant that will turn aluminum into cast iron!!! ):h So much less work! Okay - so I'm lazy! :grd:

I have Ceramic heads.

My problem is even running premium unleaded, I can't get that noisy engine pinging and banging to go away. I'm going to put in some NGK iridium plugs this weeked to see if it helps.

):h

You guys got heads? Censored That ain't fair, when I popped my hood all I saw was three mokeys turning a hand crank... :eek: They did seem a little warped though...:help:

You guys got heads? Censored That ain't fair, when I popped my hood all I saw was three mokeys turning a hand crank... :eek: They did seem a little warped though...:help:
I'll bet those monkeys are Japanese too.

Squirl cage here, runs on nuts

Maybe I should put P.C. in the cage, run like hell then, nutty as he is.

If your friend dosn't believe that there are street cars using aluminum heads and forced induction running 12's tell him to look me up if he comes to vegas any time soon. My 65 is a little over 600 hp and running in the 11's with severe traction problems, yea its a blown smallblock. The motor has held togeather for years.

The biggest problem with the aluminum Dmax heads, if you over torque the spark plugs you'll strip the threads in the head and you'll need to use a heli-coil to repair it.

seems like they should have stayed with cast iron or whatever they used to use.. two different metals sepperated by a thin gasket.... seems off... the heat dissapation and absorbtion and the way the different metals expand and contract... just seems like they should have used the same materials.....

seems like they should have stayed with cast iron or whatever they used to use.. two different metals sepperated by a thin gasket.... seems off... the heat dissapation and absorbtion and the way the different metals expand and contract... just seems like they should have used the same materials.....Figured out a way to use the Muffler Bearings help to maintain a sealed surface during expansion and contraction of the head.:D

Bill

seems like they should have stayed with cast iron or whatever they used to use.. two different metals sepperated by a thin gasket.... seems off... the heat dissapation and absorbtion and the way the different metals expand and contract... just seems like they should have used the same materials.....

While I'm not an metallurgist ~ you would think they took that in consideration wouldn't you ? Perhaps they did? You know, it is a new century but perhaps we unconcsiously associate aluminum alloy w/beer cans. Again, while not a metallurgist (sp) I'm guessing there are infinite alloy combinations/formulas/makeups ~ and while not a betting man, I'm thinking they may have a formulation that retains common characteristics of the block/aluminum heads.
My guess (thats what I do between a stiffleled yawn and scratchin' a good itch ~ removed from polite company of course) is that we are product of our experiences and that of others we regard ~ which trails that of tech developement directly proportional to our ability to unlearn the certaincies of the past. But what do I know? (yawn), (scratch, scratch)

all i know is that the majority of head gaskets that i do and the majority of warped heads and the majority of heads that are blowing between cylinders because of warpage are aluminum heads. just what i see... muffler bearings thats a whole different subject... now i will leave that up to you to debate on......

You guys don't know anything. Just ask my friends friend who's a Dodge mechanic. He told me all about how my Duramax would be warping its heads... and he would know cause he's mechanic.

As most things the first generation of aluminum heads(on gassers not out trucks) were problematic. They have long since rectified that situation. Sure it can happen, but less likely with modern technology.

Remember how everyone told us diesels were too loud, your fuel would gel, blah blah.

It's hard to get over bad past experiences.

Besides Duramax's, just to throw another brand in this warped-head discussion, my Son-in-Law was a shift forman in an aluminum foundry that makes Aluminum water pumps, Aluminum water pump housings, Aluminum blocks, Aluminum HEADS and other various Aluminum parts. When put altogether it is called a Viper V10. Doesn't that other brand also have a go-faster pickup with the same engine? Seems like the least we could do as the Aluminum-Junkies that we are, is give those poor guys over there a headsup on how to keep those things running.

Oh yea, that's how I keep mine running so well, got an extra set of heads, cut off the end cylinder, plug the water jacket with JB Weld, and good to go.

Heads are so overrated on engines. I just removed the heads on my DMax. What's not there cannot warp.

Lots of little outfits in europe have been warping aluminum heads for nearly 100 years. Ferdinand Porche, Enzo Ferrari, Lamborghini, Maseratti, Volkswagen, Audi, Rolls Royce, Bavarian Motor Works, Mercedes Benz, Lancia, Fiat, Jaguar, Citroen, Ducati, Moto Guzzi, Laverda,.......

.......to quote someone else here, "you can't fix dumb".

seems like they should have stayed with cast iron or whatever they used to use.. two different metals sepperated by a thin gasket.... seems off... the heat dissapation and absorbtion and the way the different metals expand and contract... just seems like they should have used the same materials.....Lets look at the Coefficient of Linear Expansion (per degree C) of the two metals, aluminum and iron.

Coefficient of Expansion= (coefficient)(length)(rise in temp)
Aluminum: 0.000024
Iron: 0.000011

This tells us that aluminum expanses twice as far as iron when the temp. change and length is the same. But keep in mind this is LINEAR expansion not expansion of complex shapes(clyinder head/block). But it should be close enough for this argument.

When the aluminum head expandes it will expand in all directions including upwards. So if the aluminum expandes twice as far as the steel head bolts, which will limit the upward expansion of the head, the aluminum will expand downward, closer to the block, which will make a tighter gasket seal.

Also, aluminum transfers heat, or gives up heat, much better than iron. Some will argue that the aluminum is running at a cooler temp than the iron, therefore not expanding as much and may be expanding at an equal amount as the iron.

OOHYEA The diesel that has the aluminum heads, my wifes cousin's husband. Is a die hard ford freak. w/03 powerstroke diesel. At the time june 2003 my dad bought a 03 chevy duramax diesel for me as a work truck.. As soon as he seen it, He told me to invest in pepsi/coke for the aluminum that will be melted, He said that there was hundreds of claims on warped heads, I said B.S. So we went to his friends shop (The ford house) and looked up the work orders for d-max's. What a joke. There was not one warped head reported for a 5.000 miles circle. But what we found was the the new 6.0 powerstroke was leaking fuel in the oil and catching fire. 2 trucks from the ford dealership that we were at had burnt to the ground. So i told him mabe you should not worry about my heads warping! and worry about your lovely ford burning to the ground. So far i have not heard another smart *** comment from him. and he sold his 03 powerstroke for a 04 powerstroke. So i told him that the aluminum heads on my 03 are just as tough as the 04's so i won't sell mine for a 04 duramax.
cody