My home inspection of Speedmaster heads

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  1. 318willrun

    318willrun Roadkill '80 D150

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    ok.....
     
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    • j par

      j par Well-hung Member

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      Nice...
      Was that one valve on that one head the only one that seemed a little high?
      Did you do anything about it or just adjust the rocker accordingly when the time comes?..
       
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      • pittsburghracer

        pittsburghracer Well-Known Member

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        Nice job on the video. I can’t wait till Wednesday maybe I will get off my lazy butt.
         
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        • 4spdragtop

          4spdragtop Well-Known Member

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          :thumbsup:
           
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          • j par

            j par Well-hung Member

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            Soooo..
             
          • toolmanmike

            toolmanmike FABO Staff Staff Member FABO Gold Member

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            Thanks for the great video. You need a set of head stands. You would love them. Dang look at the pushrod pinch on those Magnum heads I have compared to the Speedmasters.

            head stands.jpg

            20191207_204056.jpg
             
            Last edited: Dec 7, 2019
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            • Mtrhead

              Mtrhead Ace of Spades ♠️

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              As always great stuff !!
               
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              • Dartsun

                Dartsun Member

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                Thanks for taking time to do the video.
                 
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                • 318willrun

                  318willrun Roadkill '80 D150

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                  yes, on that head. I'll need another look as time permits. Had something going on this evening, but I would guess it's the setting of the seat.
                   
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                  • toolmanmike

                    toolmanmike FABO Staff Staff Member FABO Gold Member

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                    Agree. I would imagine the valves are all pretty close to the same length. The valves are just steel and not stainless I assume?
                     
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                    • 318willrun

                      318willrun Roadkill '80 D150

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                      yes, and I can see people buying the bare heads for about 420.00 and loading them up with nice hardware. Problem is if you have to pay a machinist to perform some of the work, then the money gets lop-sided in favor for "loaded heads" to a DIY guy like myself.
                       
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                      • moparmandan

                        moparmandan FABO Gold Member FABO Gold Member

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                        Awesome job as usual! What's your opinion of the exhaust side?
                         
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                        • '63GT

                          '63GT Well-Known Member

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                          Yep they're nice heads. I've had mine a couple years.
                           
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                          • 318willrun

                            318willrun Roadkill '80 D150

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                            exhaust side is good. Mildly ported 308 heads are just as good. But in my opinion, the 308 head might be the best small block head from the factory on the exhaust side. So I just gave SM a compliment.
                             
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                            • 70aarcuda

                              70aarcuda Master Hoader of SBM FABO Gold Member

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                              Stainless
                               
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                              • toolmanmike

                                toolmanmike FABO Staff Staff Member FABO Gold Member

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                                Nice they don't need a back cut. There seems a lot of good going on here for the price.
                                 
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                                • '63GT

                                  '63GT Well-Known Member

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                                  What's really crazy is, you used to be able to buy direct fit 2.05's for $30 !!
                                  They fit right into that head too. The seat will go out to that no problem.
                                   
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                                  • 12many

                                    12many Well-Known Member

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                                    Any intentions of testing the spring pressures, hardness of the retainers or locks or?
                                     
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                                    • 318willrun

                                      318willrun Roadkill '80 D150

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                                      I don't have a way to accurately test the springs. Retainers/locks are suppose to be chromoly.
                                       
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                                      • '63GT

                                        '63GT Well-Known Member

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                                        Seems like the springs were 145# seat and 350+ at .500 and plenty of room to go .650 lift. I do.
                                        I've put several 6500 rpm hits on them and everything is still in one piece.
                                         
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                                        • 318willrun

                                          318willrun Roadkill '80 D150

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                                          Can't beat first-hand testimony. thanks
                                           
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                                          • j par

                                            j par Well-hung Member

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                                            Just checked both of my heads and valve stems and rocker shaft stirrups are as flat as glass..:thumbsup:..
                                             
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                                            • '63GT

                                              '63GT Well-Known Member

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                                              lol looks like SpeedMaster/ProComp made a killin of the good men of FABO !
                                               
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                                              • toolmanmike

                                                toolmanmike FABO Staff Staff Member FABO Gold Member

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                                                Many thousands from here.
                                                 
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                                                • '63GT

                                                  '63GT Well-Known Member

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                                                  Yeah, come on, I'm dying to find out how much CFM you whittle out of a set of these ! :)
                                                   
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