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duramax heads

Discussion in 'Chevy Trucks' started by lorentzlawnsnow, Oct 17, 2005.

  1. lorentzlawnsnow

    lorentzlawnsnow Senior Member
    Messages: 143

    anyone have any trouble with cracking the aluminum heads they put on those duramax's? my cousin is a deisel mechanic, and in his shop they call them duracrax, because the aluminum just won't hold up to the heat.
  2. ratlover

    ratlover PlowSite.com Addict
    from IL
    Messages: 1,325

    LOL Nope....they wont hold up. I've had my 1600 degree pyro burried in the red numerous times every day I drove it......sprayed enough N2O into my motor that most gasser guys look at me like I'm from mars when I tell em the amount, beat on it with 0 problems for 55k miles. Totaly junk :rolleyes: I dont know how many HP I put out.....I suppose you could go by the MPH calculators and figure a 11.75 et at close to 116 MPH in a 6600# truck would put me over 700 HP to the rear wheels. I shoulda bought a 6.0 ford with thier cast iron heads and 1/2 the head bolts.....they would hold up way better I'm sure :rolleyes:
  3. GetMore

    GetMore Senior Member
    Messages: 179

    I know someone with a Duramax and he hasn't had any problems. As a matter of fact, I think he knew of one person who had a problem with the engine. That is one out of thousands. (Injectors are another issue altogether.)
    My friend was only in the 12's. He had a dyno sheet of it, but I don't remember the numbers.
  4. DuramaxPowered

    DuramaxPowered Member
    Messages: 86

    I have a 2002 duramax with 73000 miles and didn't do the first thing to it other then filter and oil changes and 1 new set of tires. The original brakes yet. Brakes look over 50% left yet with no warped rotors. I also pull my gooseneck weighing 20000# in the mountains for work a few days a year. These trucks and motors& trannys are great!!:D