1. Mopar Vinnie

    Mopar Vinnie Well-Known Member

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    Has anyone has used the 440 source heads and what is your build recipe with them
     
  2. tnfastback

    tnfastback FBBO Gold Member FBBO Gold Member

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    I am using a set on a 512 six barrel set up. Results unknown as engine won’t be installed for another 2-3 months. My goal was a near stock set up and only stroked engine because it was only a few hundred bucks more than going back as a stock 440.
     
    Last edited: Mar 26, 2020
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    • Jessejames

      Jessejames Well-Known Member

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      I just put a motor together last summer with them. A nice set for the money.Look just like the stock heads. Only aluminium...The guys were really helpful. I got about 100 miles on the motor. It's a beast! If it wasn't for the charging problem I'd have more miles on it.
      440 with a .030 over bore
      Steel crank with Icon pistons
      Bullitt camshaft solid flat tappet I believe the duration 255 @ .050 the lift is .582
      Harland sharp 1.5 rockers
      You will have to do some minor grinding for the push rod clearance. Other than that there pretty much a bolt on product.
       
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      • Glenwood

        Glenwood Well-Known Member

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        @threewood used them and detailed it on his gtx thread.
         
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        • Frank Mopar

          Frank Mopar Well-Known Member

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          I run them on my drag only car. I am at top of the cam size they recommendation with 7 degree keepers.

          I did find pieces of the keepers doing routine inspection and replaced them with the 10 degree ones.

          So after three plus years the springs gave up and I started to poke rockers (stock stamped ones) and bend pushrods. Replaced the springs and no more problems.

          I would definitely run them on a mild street engine but next time, for a race only, I will take the more expensive route. IMHO
           
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          • Derwud

            Derwud Well-Known Member

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            I have them on my 540, they are maxed out as my engine put out 600 hp and 700 ft/lbs of torque.. I have a set of Trick Flow 240's to put on later and the Source heads will be used for a "Stock" build.
             
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            • wagonman

              wagonman FBBO Gold Member FBBO Gold Member

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              I got a set in a package deal when building my Duster. Took the to the machine shop to check valve job etc. Had the seats and valves touched up, then vacuum tested. Had to replace 2 exhaust seats because they would not seal. Shop said when they were installed went in cocked and got some shavings under them. Also said when installing seats another seat popped up from driving seats in. I said stop any more work and got a set of TF 240s. Had them checked and were perfect. Sold the 440s and let the guy know what’s what.
               
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              • IQ52

                IQ52 Well-Known Member

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                Here is what a professional has done with them.................

                http://www.dodgecharger.com/forum/index.php/topic,106687.0.html

                They are mass produced out of the country and I recommend they be inspected carefully before use. Good news is that many of the earlier problems with them have been corrected.
                 
                Last edited: Mar 26, 2020
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                • HEMI-ITIS

                  HEMI-ITIS STREETER on LI FBBO Gold Member

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                  Loaded heads or a crate engine. You MUST disassemble and check everything or your rollin the DICE!!:poke:
                   
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                  • IQ52

                    IQ52 Well-Known Member

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                    I'm often a "Nattering Nabob of Negativism" (thank you Spiro T. Agnew). However what is said here about the Stealth heads is true. However.............

                    "........pretty much a bolt on product"............probably not.

                    Maybe more importantly though...."The guys were really helpful.".......Very true. I have always received excellent customer service from 440 Source.
                     
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                    • diesel_lv

                      diesel_lv Well-Known Member

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                    • threewood

                      threewood FBBO Gold Member FBBO Gold Member

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                      Mine are cnc ported, different springs, 10 degree locks and keepers. Nice heads.
                      440 + .040", 800cfm Edelbrock AVS2, Holley SD intake, Hughes STL-3842 cam, 1 7/8" Headers, 2 1/2" exhaust.
                      20190220_163615.jpg 20190220_163438.jpg 20190220_163337.jpg 20170324_155530.jpg 20180625_202902.jpg
                       
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