Another 416 on the dyno

Small Block Mopar Engine

  1. MRL Performance

    MRL Performance Well-Known Member

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    The dyno is done! The 416 ran great. It has a great sound and ran very good. here is the run down:

    340 block prepped for build
    SCAT forged stroker kit
    Pro Comp heads Stage 3 ported, this is about 90% porting
    Hughes roller rockers
    M1 intake (OOTB nothing done to it at all)
    Quick Fuel Black Diamond 850 carb
    Mallory dist/coil/wires
    Accel plugs
    Custom Lunati solid roller cam
    MRL solid roller lifters
    3/8 pushrods
    ARP head bolts/main studs
    Hughes main stud girdle
    Billet timing set w/tensioner
    MLS head gaskets
    High flow oil filter stud and billet plate
    New water pump and timing cover


    It was ran on 93 octane pump gas, no issues at all. 10.3 to 1 compression. 34* total timing. It fired right up and ran strong the whole day. The carb was just about perfect right out of the box.

    A/F was 12.35-12.84 the whole run and BSFC was .394-.435. VE was 100%+ from 4800-5800 rpm

    It made
    577HP at 5850 rpm
    550TQ at 4800 rpm

    I has a super flat torque curve. Its making 500+TQ from 3800-6000 rpm!!!! It held peak TQ of 550 from 4800-5200 rpm

    And its making 500+HP from 4800 rpm on up. It held 570HP+ from 5600-6000 rpm!

    It is running very clean and very strong. On the street it will sound like a freaking beast, and run like one too. All that torque will plant you back in the seat hard.
     

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  2. Lakeeffect

    Lakeeffect Drive Fast , Take Chances

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    Drool
    Oh and what do your pro comp heads run money wise ? Do do you helicoil the bolt holes?
     
  3. skrews

    skrews Well-Known Member

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    Cam specs ?
    Headers size ?
    Hand or CNC ported heads ?
     
  4. dusmon

    dusmon Well-Known Member

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    Ya I'm intersested as well.:burnout:
     
  5. MRL Performance

    MRL Performance Well-Known Member

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    [ame]http://youtu.be/FKEcW7TPbjg[/ame]
     
    • Thanks! Thanks! x 1
    • MRL Performance

      MRL Performance Well-Known Member

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      Cam is my design. All I will tell you is it pulls hard, and engine has 10" vacuum at 900 idle.

      Headers are our std dyno headers 1 5/8 to 1 3/4 step, like a TTI, w 3" collector

      Heads are the CNC with very little hand work. If I spend more time with the hand blending they flow about 10-13cfm more. These flow 300/224cfm at .550"
       
    • OldmanRick

      OldmanRick Well-Known Member

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      Another big power "broad curve" cam design from you Mike. Nice job :thumleft:.
       
    • WRB426

      WRB426 Insane 4 Mopars FABO Gold Member

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      SICK!!!! :prayer:
       
    • skrews

      skrews Well-Known Member

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      Thanks for the reply. I bet some work in that M1 would get you in the 600 range. The couple that I've had in hand were pretty "rough".:thumbrig:
       
    • MRL Performance

      MRL Performance Well-Known Member

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      Yup. I wanted to keep the velocity up for the bottom end so I kept the ports a bit smaller on the intake. I have ported the M1's out before and had some great top end power, but it sucked too much of the low end away. So its a bit of a compromise.

      I just went thru this in the Spring. I spend about 15hrs porting out a Victor, got 596HP, but it killed the power under 4000rpm. It all worked out in the end(light car tall gears). But porting intakes is a lot harder to do than heads, and sometimes the time spent isnt worth the reward.
       
    • famous bob

      famous bob mopar misfit

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      mike , do you know what runners are th weak ones on a 440 victor intake ? still haven`t got around to needin the lifters, will call tho, gettin antsy to start on the 505 again.----------bob:-?
       
    • moper

      moper FABO Gold Member FABO Gold Member

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      Hi Mike,
      You've used a few of these heads, right? How's the supply chain for them? Have you tried other rockers or always Hughes?
       
    • MRL Performance

      MRL Performance Well-Known Member

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      I have never had Procomp rockers, and most likely never will. I like the Hughes and the SS PRW's
       
    • 345man2

      345man2 Well-Known Member

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      :blob:killer build , when a builder doesn't care to dyno any of his engines that means he isn't ashamed of them, he lets the numbers do the talking, and a guy that doesn't care to help and answer any questions, that's why he got my business
       
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      • valle6062

        valle6062 Well-Known Member

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        I could not recist to uppload my report from when I drove my Valiant on a Dyno-road.
        It has a 273 Commando that I put together with what I thought was right.
        318 flow ported heads with 2.02/1.60 Stainless valves.
        340S camshaft
        Edelbrock 1406
        Open-Air dual plane intake from China :)
        Hei Distrubutor.
        NO HEADERS.
        2.5" dual exhaust with an X
        runs on 95 oktan and is a Dream to Cruise with.

        904 Lock Up.
        8.3/4" with 3.23 gear.

        it spit out 467hp/739Tq/4500Rpm.....:glasses7:
         

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      • OldmanRick

        OldmanRick Well-Known Member

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        That engine needs to be pulled immediately and sold to our Smithsonian Institute here in the US...
         
      • 70aarcuda

        70aarcuda Master Hoader of SBM FABO Gold Member

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        Not the engine...but the dyno ...
         
      • OldmanRick

        OldmanRick Well-Known Member

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        lol...
         
      • toolmanmike

        toolmanmike FABO Staff Staff Member FABO Gold Member

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        Another strong stroker Mike. No reason why you can't have a little of both bottom and top end. This mill would be great for a street car with a fairly mild convertor and rear gear.. It would pull like a bull elephant. tmm
         
      • MRL Performance

        MRL Performance Well-Known Member

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        I have built a few SBM like this, with the same cam and head flow, but with the RPM intake. The torque started out a little earlier, but didnt make any more(550), the M1 pulled a little better on the top end(577 vs 560) and had a few more RPM's to work with. Its a good combo and Im very happy with the results.
         
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        • moper

          moper FABO Gold Member FABO Gold Member

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          Cool. How about the delivery times and sourcing the heads?
           
        • 451Cuda

          451Cuda Well-Known Member

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          It must be from another universe, it defies the laws of physics in our world...
           
        • Abodybomber

          Abodybomber Breaking street machines , since 1983.....:) Legendary Member

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          How does a 2.02 intake valve,clear a 273 bore?.......
           
        • A68DART360

          A68DART360 Well-Known Member

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          That torque is CRAZY!!!!
           
        • valle6062

          valle6062 Well-Known Member

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          I had to notch about 4mm to clear the valves :)
           
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