Engine Setup for 472 Hemi

Engine, Trans & Driveline

  1. BIGWILLI

    BIGWILLI Well-Known Member

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    Hello, I am new here. I need help from Hemi builder or expert.

    I would like buy a new Hemi Block from Mopar Performance #P5160151AC (rough bored 4.24“).

    I would engine is for Street Performance (no Strip etc.)
    Stock 68 Coronet R/T, 4 Speed 18 Spline A833, 3.54 Dana S60, 295/50R15 on rear.

    I would build engine with:

    -Rotation Assembly from Indy (472 with 10:1)
    -MP Iron or Alu Heads or Edelbrock Victor (ported minimal only gasket area)
    -Intake 4x2bbl, I dont know what better, I think take MP or mod man from Indy)
    -Rockers Assy: Mancini Racing (it is good?)
    -Camshaft, what should take? I think take Hydraulic flat tappet
    -Oil Pan maybe Milidon
    -and other parts should all stock.

    I need your help, what is good setup? Other proposal?

    I think I would like habe about 550 to 600 horsepower. But torque should good and high too.

    Important question: I cannot find information about MP (iron/Alu) heads. How much can max. lift of valve springs? By edelbrock victor can to .700“ lift.

    Have anyone sell of Valve Covers (Black or MP Alu) and Air cleaner Assy (for 1970)?
     
    Last edited: Feb 8, 2019
  2. mmissile

    mmissile Well-Known Member

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    Put a 4.25 stroke crank in it, and get it to nearly 500 inches. All the parts cost about the same.
     
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    • PRHeads

      PRHeads Well-Known Member

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      Don’t buy anything until you have the block in your possession, and it has been checked out and verified it’s a suitable piece for your build.
       
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      • andyf

        andyf Well-Known Member

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        Exactly, don't worry about anything else until you have a block. Once you have a block in your hands then you can proceed with buying other parts. If it was me I'd go with a 4.25 stroke crankshaft and probably use the Edelbrock heads and intake manifold. Everything else is just details and the small parts are typically in stock or easy to find.
         
      • BIGWILLI

        BIGWILLI Well-Known Member

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        Of course I would buy a Block first. Step by step buy another parts.

        I would know for a setup here. MP, Edelbrock or Indy heads is better
         
      • BIGWILLI

        BIGWILLI Well-Known Member

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        What Rods and pistons can I use? I have find never...
         
      • Hemirunner

        Hemirunner Well-Known Member

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        Diamond Racing pistons and Molnar Rods. Molnar crank as well. As others have said, at least a 4.250 stroke crank.

        The Edelbrock heads are the way to go. The Mancini rockers will work fine for a street build.
         
      • PRHeads

        PRHeads Well-Known Member

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        You really don’t need to worry about the other stuff until you have a block in your possession.

        People have been waiting for well over a year to get one.

        Don’t buy any other components until the block is in hand and you’re ready to move forward with the build, this way you can be using the most up to date parts available.
         
      • Hemirunner

        Hemirunner Well-Known Member

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        Other than the Edelbrock top end stuff, nothing has changed in the G2 hemi world in a decade. He’s good even if it takes 5 years to get a block....
         
      • Fran Blacker

        Fran Blacker FBBO Gold Member FBBO Gold Member

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        Hey there's a couple of short blocks on ebay. The catch $35,000+ each and look rusty?
        :eek::eek::eek::eek::eek::eek::screwy::screwy::screwy::screwy::screwy::screwy::screwy:
         
      • PRHeads

        PRHeads Well-Known Member

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        Yes, and no.
        Piston forgings change, there were crank and rod offerings from manufacturers that don’t exist anymore.
        Piston ring technology keeps advancing.

        You could easily have bought bottom end parts 5 years ago, that have been sitting on the shelf unused, that if you needed a replacement for...... no longer exists.

        Just one example...... K1 used to offer RB 4.250 cranks in 8 and 6 bolt, in both Mopar and Chevy width rod journals.
        And, they had 7.100 rods in both widths as well.
        Now, only Chevy width cranks, and no 7.100 rods.

        There’s really no “up side” to buying bottom end stuff until you’re ready to start building the motor.
         
      • HEMI-ITIS

        HEMI-ITIS STREETER on LI FBBO Gold Member

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        OP,you did not say if you were assembling yourself.IMOP if you are doing a fresh build,everything and I mean everything must me cleaned,cleaned then cleaned.You must measure everything 5 times and check and recheck EVERYTHING during assembly.There are many combos that just WORK! Consider a pro like PRH to calculate the combo.Port matching and valve job can make a difference.He has built so many BBMz the count has been lost!
        Look at it as an entire package where everything works in harmony.
        There are many builders,but few that can do the heads and valvetrain like Porter!:thumbsup:
         
      • Hemirunner

        Hemirunner Well-Known Member

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        • HEMI-ITIS

          HEMI-ITIS STREETER on LI FBBO Gold Member

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          Many "stock" parts can be used in a build like this including a good used block.The parts are out there and you need the right guy to help you put your package together!
           
        • BIGWILLI

          BIGWILLI Well-Known Member

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          does anyone have recommendation for Cylinder Heads, Intake s, Rocker Arms (mancini racing, good?)

          or recommendation other parts?
           
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          • HEMI-ITIS

            HEMI-ITIS STREETER on LI FBBO Gold Member

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          • BIGWILLI

            BIGWILLI Well-Known Member

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            So I am back here.
            I have block (Callies) now, same parts are in my keller.

            -Indy SR Heads with valve Spring for lift up to .560 (Comp Cam 928)
            -MP stock intake manifold
            -Mancini Racing valvetrain (stock rocker arms system)
            -Milodon 7qt oil pan with windage tray
            -Melling HV oil pump
            -black wrinkle valve covers

            my opinion setup:
            -472 stroker kit (molnar crank+rods) and custom Diamond Pistons for 10.5:1
            -clevite H-Serie bearing
            -Comp Cam solid flat 235 or 250 or Crower 33253
            -Edelbrock carbs 2x500cfm
            -Carter high volume fuel pump

            I need opinion from you what do you recommendation other setup…

            1968 Dodge Coronet R/T
            4Speed A833
            3.54 Dana S60
            Street (with mild to moderate performance)
             
            Last edited: Oct 19, 2021
          • Fran Blacker

            Fran Blacker FBBO Gold Member FBBO Gold Member

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            Carbs need to be larger 500cfm is smaller than stock. MO. How's the machining on block? Does it need any fixing align hone decks squared etc.
             
          • Runcharger

            Runcharger Well-Known Member

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            I put a lot of miles on my 472 and I really liked it. It costs the same to go bigger but if you can't get a 472 to easily run in the 11's chances are a bigger engine will just burn more fuel too. With the rash of flat tappet cam failures I would go directly to a mild, solid roller. You need at least a pair of 650 carbs but better to go directly to fuel injection.
             
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            • BIGWILLI

              BIGWILLI Well-Known Member

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              Block should only honing all cylinders…

              choice of camshaft is hard… but i habe time… good to know I should put 2x650cfm carbs (maybe AVS2)
               
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