Skunkwürks quarantine 4.0 build

Small Block Mopar Engine

  1. Heywodja

    Heywodja The Heartbeat Stops Here FABO Gold Member

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    9A6269DC-3E1E-45F8-A0E4-2DD024268261.jpeg 251BFEEA-9BF6-465E-BFC4-B57A9A5B3C5C.jpeg And so it begins...
     
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    • diymirage

      diymirage HP@idle > hondaHP@redline

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      what is a 4.0?
      what happened to the first three?
       
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      • hemi446

        hemi446 Well-Known Member

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        Are you taking sometime out to protest in your state ?
         
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        • Heywodja

          Heywodja The Heartbeat Stops Here FABO Gold Member

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          4.0 stroke
           
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          • diymirage

            diymirage HP@idle > hondaHP@redline

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            nice, my 408 has a 4 inch stroke
            your gonna love the torque
             
          • Wyrmrider

            Wyrmrider Well-Known Member

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            Here I was hoping for a Jeep build
            Only thing better than a 4.0 would be a 4.25
            what's the delta in cost?
             
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            • Heywodja

              Heywodja The Heartbeat Stops Here FABO Gold Member

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              Molnar crank & rods / balanced rotating assembly
              Trickflow heads

              more to come
               
            • Heywodja

              Heywodja The Heartbeat Stops Here FABO Gold Member

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              It was only 3.58 so I decided to round up a little bit..
               
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              • Heywodja

                Heywodja The Heartbeat Stops Here FABO Gold Member

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                Rods bearings are in, block has been rough honed and align honed. rods.jpg

                Block.jpg
                 
                Last edited: Apr 30, 2020
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                • Heywodja

                  Heywodja The Heartbeat Stops Here FABO Gold Member

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                  New Molnar Crank, next step is to mock up to to determine how much the deck needs to be milled if any...
                  upload_2020-4-29_15-57-50.jpeg
                   
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                  • Heywodja

                    Heywodja The Heartbeat Stops Here FABO Gold Member

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                    Block has been align honed, decked, bores honed and final honed with torque plates, oiling mods done and is ready for mock up and clearance checking. Few more goodies roller timing chain, oil pan, cam & lifters, bearings and heads... 0821200853_resized.jpg 0821200855_resized.jpg 0821200856a_resized.jpg 0821200858_resized.jpg 0821200903_resized.jpg 0821200859_resized.jpg
                     
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                    • diymirage

                      diymirage HP@idle > hondaHP@redline

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                      make sure you inspect that oilpan
                      milodon does not have a reputation for quality welds (something they blame on the EPA and their inability to test welds with oil)
                       
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                      • pishta

                        pishta I know I'm right....

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                        Those windage studs are $61 for 4? Yikes, I can imagine how much money you got in this build already! Ill watch this build as Ill never be able to afford it. :thumbsup:
                         
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                        • yellow rose

                          yellow rose Overnight Sensation FABO Gold Member

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                          And finding those damn studs are near impossible. I now have 2 sets because Summit can’t follow simple directions.
                           
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                          • famous bob

                            famous bob mopar misfit

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                            Reminds me of a big 7 blade alum. fan I bought from jegs a long time ago , they kept sending me steel bladed fans , after 3 of them , I cancelled the order and asked for a shipping retun # , sent all three back and got my $$ back.
                             
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                            • RedB.

                              RedB. Well-Known Member

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                            • Nat

                              Nat Well-Known Member

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                              nice i have the same crank and rods in my 426 , what are the specs on the pistons ?
                               
                            • Heywodja

                              Heywodja The Heartbeat Stops Here FABO Gold Member

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                              Dish -28cc, 487 Grams Advertised Weight

                              Pistons.JPG
                               
                              Last edited: Aug 22, 2020
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                              • Heywodja

                                Heywodja The Heartbeat Stops Here FABO Gold Member

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                                I will check with my builder, I am not fully versed on that issue.
                                 
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                                • Nat

                                  Nat Well-Known Member

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                                  those mahle are nice and light , good pistons with hat dish what will your compression be ? i had 23cc dish had to buy a set of 13cc to bring compression up to 11.4 , but i run 3 gallons 110 octane with every 8 93 octane
                                   
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                                  • Heywodja

                                    Heywodja The Heartbeat Stops Here FABO Gold Member

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                                    This is a sea level car street car, we are shooting for just under 10.0.
                                     
                                  • RedB.

                                    RedB. Well-Known Member

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                                    I like what you are doing there, I am working on similar build, you are ahead of me so I can get some pointers from you. Is that Howards a shelf cam or custom grind ?
                                     
                                  • Wyrmrider

                                    Wyrmrider Well-Known Member

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                                    10:1 270
                                    9.7:1 264
                                    to max aj type build
                                    any more starts low end trade offs
                                     
                                  • Heywodja

                                    Heywodja The Heartbeat Stops Here FABO Gold Member

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                                    It is a custom grind cam, and honestly I am not sure what grind the builder ordered we were talking about it Friday when it arrived at his shop, so I have yet to get all the specs hopefully in the next few days I will have the specs and I will share them when I get them.
                                     
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                                    • Nat

                                      Nat Well-Known Member

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                                      one thing for sure you are using quality parts , should be a nice engine, wish i had gone with the Mahle pistons . Much lighter than the DSS pistons i'm using
                                       
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