Edelbrock SBM big valve heads on clearance

Small Block Mopar Engine

  1. 512Stroker

    512Stroker We are all here because we are not all there.

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    • Bobzilla

      Bobzilla Well-Known Member

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      I have been wondering what these heads really are. The description says large port, which makes me think it’s a replacement for the old large port commando heads, but they list the port size as 174cc. It does say requires offset rockers.
      Mancini occasionally has a run of heads that are replacement versions of heads used on some of the crate engines. I think that is what these are.
       
    • Killer6

      Killer6 Well-Known Member

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      "W" I'd say Eddy's version of W5 heads.
       
    • toolmanmike

      toolmanmike Moderator Staff Member FABO Gold Member

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      They sure don't look like a W5 head. (exhaust ports) They do require offset rockers.
       
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      • Rat Bastid

        Rat Bastid .004 light

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        Yup. And the exhaust port is wrong for a W5. And the intake port isn’t raised like a W5 either.
         
      • Johnny Mac

        Johnny Mac www.blueprintengines.com FABO Vendor

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        Note the last line "P5153850"

        I bet they are super commandos. I have them on my 408. Basically Aluminum edelbrocks with moved intake valve position, sold with a mopar perf PN, And they take a rocker arm setup that was never actually produced anywhere.

        I had to take my heads to Harland sharp to get a set custom made. They are not w2, they are not t/a. They are a different offset entirely.

        On a flow bench they weren't miraculously better than a standard edelbrock on a 4.030 bore. On an R block, they might be. I put alot of $ into having them ported, and the valves un shrouded, and I think I still only got 285 out of them peak, on Trickflows flow bench.

        Mopar Performance LA Cylinder Head - P5153850

        I'm pretty sure mine even had 2.1 valves. So typical "Mopar performance" contract someone to make something, data is half accurate, they make 200, and are discontinued before the ink in the catalog is dry. Hence....no rocker arms.

        Not a bad head, but you won't be running a $500 set of rockers on them.
         
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        • mopardug

          mopardug FABO Gold Member FABO Gold Member

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          They've had that price for several months, at least.
           
        • Blucuda413

          Blucuda413 Well-Known Member

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          That part no is for a Large Port Commando. If so W2/5 rockers will work just fine.
           
        • cookietruck

          cookietruck Well-Known Member

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          pretty sure they are the same thing as the "Indybrock" heads, or "Indy-TA" heads.
           
        • rumblefish360

          rumblefish360 I have escaped the evil Empire State! FABO Gold Member

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          No script on the side of the head and looking at it reminds me of a chink head…. Just sayin…
           
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          • 512Stroker

            512Stroker We are all here because we are not all there.

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            Rumble you could purchase a set and let us all know what you get.
             
          • Johnny Mac

            Johnny Mac www.blueprintengines.com FABO Vendor

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            For what it's worth, I pulled the instruction sheet out of my file cabinet this morning. Same PN. I can't tell what they are actually selling in the listing being the stock photos, but the mopar pn they give matches mine.

            20211115_073831.jpg

            20211115_073817.jpg
             
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            • Blucuda413

              Blucuda413 Well-Known Member

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              Going back and looking at the pictures again the exhaust ports definitely are not Large Port Commando.
               
            • PRH

              PRH Well-Known Member

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              Exactly........ well kinda.

              https://www.google.com/amp/s/www.motortrend.com/how-to/mopp-1303-cylinder-heads-light-headed/amp/

              If Mancini had a bunch of those to unload, they should think about having some rockers, based on their in house HS rockers, sourced for those heads and offer them as a package deal.

              The headache for most, as JM pointed out is........ no off the shelf rockers available.
               
              Last edited: Nov 15, 2021
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              • pittsburghracer

                pittsburghracer FABO Gold Member FABO Gold Member

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                I’m taking it the listed price is per head (one). If so I would invest in a set of TrickFlow heads.
                 
              • PRH

                PRH Well-Known Member

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                Totally.
                 
              • cookietruck

                cookietruck Well-Known Member

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                that link isn't working for me.
                I emailed Mancini and they do have rockers arms that HS designed for these heads. I was thinking about buying a set of the heads and the rocker arms but came across some IMM prepped Indy Xheads.
                 
              • PRH

                PRH Well-Known Member

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                Good to know on the rockers.

                I just tried the link again.
                Works fine for me.
                 
              • cookietruck

                cookietruck Well-Known Member

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                oh i see the article now.
                had to use this .. Cylinder Head - Light Headed - Mopar Muscle Magazine

                yeah, most IndyTA heads seem to have 2.05" valves so the 2.08" in the mancini head is one difference...
                 
              • PRH

                PRH Well-Known Member

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                The Indy T/A heads also have the shafts relocated and use BB rockers.
                 
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                • PRH

                  PRH Well-Known Member

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                  It would make for a good dyno shoot out(just another one that will never happen).

                  These Mopar heads with a mild bowl blend vs the TF heads on some mid-level 408/416 type build.

                  I wonder if the new BPE cnc program would fit in that casting?
                   
                • cookietruck

                  cookietruck Well-Known Member

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                  it would.
                  i found some old posts from @ou812 about the moved pushrod edelbrock variant heads and he seemed to really like getting the hump out of the int port to settle the flow even it didn't actually increase flow much at all. I'm talking about posts from 8-10 yrs ago though when there were alot less heads to run.
                  so at this point, these heads might make sense for some builds. they are about the same price as regular edelbrock heads now, mancini has rocker arms though they aren't listed on the site.
                   
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                  • Dan the man

                    Dan the man Well-Known Member

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                    I wish that edelbrock or afr would have a cylinder head for the 318. Edelbrock has a cylinder head for the small bore small block Chevy and afr has the afr165 for the 289 / 302's.
                     
                  • Mopar Sam

                    Mopar Sam Well Fed Member

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                    The edelbrock head is fine for a 318.
                     
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                    • Dan the man

                      Dan the man Well-Known Member

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                      Even with it's 2.02 valve's and 170cc intake runner size
                       
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