Best performing non offset Small block Mopar heads

Mopar Racers Forum

  1. '68cuda416

    '68cuda416 FABO Gold Member FABO Gold Member

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    • '68cuda416

      '68cuda416 FABO Gold Member FABO Gold Member

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      Was by accident but was giving a friend a ride in it on the street and ofcourse the tire just gets blown off it and I stayed in it longer than I probably should have with a small tire and a lot of power but when we got back to the shop I hit the highest RPM recall and it was 9500........I was like yikes......
       
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      • SSG_Karg

        SSG_Karg I am the Nightrider!

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        Atta boy. :thumbsup:
         
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        • RustyRatRod

          RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member

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          Purdy dang stout!
           
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          • cookietruck

            cookietruck Well-Known Member

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            how did they fail? Were there multiple motors put together that were underachievers? i remember the thread here and the motor made decent power up top and was a little light on torque but it could’ve been the intake and borderline low compression if i remember correctly. So the heads weren’t a magic bullet so to speak. So were there other engines too??
             
          • 19DUSTER73

            19DUSTER73 Well-Known Member

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            "Fail" may have been poor word choice. If I remember correctly they just didn't make the power that was expected of them. Been a couple years since reading that thread. Seems like there were 3 sets of heads involved. Hughes big mouth, Bloomers and maybe another. Might have only been the two heads.
             
          • Cudafever

            Cudafever Well-Known Member

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            If you have the money, BOOM there it its, instance gratification! (not really, it probably took a long time to get it out of the machine shop)
            If you have little cash but LOTS of TIME. them, That instance gratification you have too take one bite at a time. I have been taking one bite at a time for 30 plus years on my car.
            There are a 100 ways to skin a cat. and these examples are only but two. There not Right. There not wrong. One is not better then the other..........except for the person behind the wheel.
            We all have Hit the oops button, we have all made grate strides toward are future performance.
            It's just life!!!!
            By the way, liked your video.
            looks and sound grate going down the track!:D
             
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            • PRH

              PRH Well-Known Member

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              I too would have liked hearing about how they determined a new port design was needed.

              I’m sure the evolution of the head from version 1 to version 2 would make for interesting reading.
               
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              • tjpatte

                tjpatte Well-Known Member

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                Nice run, that sounds incredible!
                This would have caused me to wet myself, my crank would wind up in the glove box long before then:D
                Hopefully we hear something, just for my curiosity and to learn something. I would think most successful methods of making non offset heads work would have been figured out, but sure I’m wrong.
                 
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                • 19DUSTER73

                  19DUSTER73 Well-Known Member

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                  Give Rod Bloomer a call. 574-340-5470
                   
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                  • rumblefish360

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

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                    THERE YA GO! Thank you!
                     
                  • tjpatte

                    tjpatte Well-Known Member

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                    I would, unfortunately I’m not smart enough in head design to ask intelligent questions. That’s why I enjoy people like PRH and John’s inputs as they break it down in ways I can understand.
                     
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                    • pittsburghracer

                      pittsburghracer FABO Gold Member FABO Gold Member

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                      I gotta admit for a non offset head that’s a good runner. Is that a ProMaxx, Edelbrock, Speedmaster, or factory casting.
                       
                    • '68cuda416

                      '68cuda416 FABO Gold Member FABO Gold Member

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                      It's a street/strip W9 that Brett Miller did, the only reason I posted it is in response to you asking if I had any cars of my own. The engine obviously doesn't fit into the jist of the original thread but was provided to you so that you could see one of the cars.
                       
                    • 79410aspenrt

                      79410aspenrt Well-Known Member

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                      All non offset heads are basically in the same category. All of them can make 550-620 HP range. Only can take a non offset head so far. Can only do so much and it’s maxed out. After that a W series/ Indy head is what is needed to make higher HP.
                      It is nice to see more attention to the SBM crowd. TF, Eddie, Promaxx, Speedmaster……and now the Bloomer head is back. Just means more options for us SB guys.
                       
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                      • lead69

                        lead69 hopeless car junkie

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                        This we can 100% agree on, nothing out there will outperform an offset rocker head. For the record myself or YR never said a trick flow (or any std. port head) would beat an offset rocker head, just they are the best option out there for the money. As a matter of fact YR is a w2/w5 W anything freak.
                        I have to say
                        @'68cuda416 regardless of your tact :D, your car is bad ass and is the style I like. I am giving up some performance to drive mine on the street (and keep the four speed) but a power adder will help that.

                        My attitude is the more speed parts for mopars the better and I would really like to see more info/tech specs on the bloomer heads as well as to find out what the intention was with them, sadly we may never know.
                         
                        Last edited: Nov 29, 2021
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                        • '68cuda416

                          '68cuda416 FABO Gold Member FABO Gold Member

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                          Thank you and I agree with you on the points you made
                           
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                          • 1Badcolt

                            1Badcolt Well-Known Member

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                            Nice (EAR PORN)
                             
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                            • Hemirunner

                              Hemirunner Well-Known Member

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                              Whatever happened with the Edelbrock Victor heads? I thought that was a great “in between” head making more power than replacement heads but not as exotic as the W heads. Seems it never really caught on.
                               
                            • flyfish

                              flyfish C8H18+N2O = :-D

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                              I didn't read all the bickering in pages 2-8 (just skimmed it)...but to the OP's question, here my example of a good running non offset head combo:

                              My car is not the fastest, but it works well....it has gone 10.1 at 130.5 mph with my small carb in decent air....normally runs low 10.3's in the summer heat. This is in my ~3250-3200 lbs 67 Barracuda (not positive on the weight since I have not weighed it in a few years). I think it could do ~132-133mph with better air and the big carb.

                              The combo:
                              360 block, Scat 4" steel crank, Scat I-beams, forged Icon pistons, 13:1 compression, e85, Stage II ported Edelbrock heads by Ryan Johnson, 57cc chamber, Victor intake, home made 750 e85 carb (also have a 950 e85 carb for it), 1 3/4 Headman Hustlers,
                              Hughes solid cam 264/268 @ 0.05 with ~0.620 lift (if I recall correctly), 8" converter
                              727, TA valve body, 8 3/4, spool, 35 spline axels with 4.10 gears, Hooiser DR 275/60/15's + the full Caltracs setup and 3" Dynomax race bullets.
                               
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                              • RustyRatRod

                                RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member

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                                Dude. Your car is the chit legends are made of. Always has been. I love that thing.
                                 
                              • pittsburghracer

                                pittsburghracer FABO Gold Member FABO Gold Member

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                                Didn’t you run nitrous at one time. Did you ever try it on that combo?
                                 
                              • flyfish

                                flyfish C8H18+N2O = :-D

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                                I have not used nitrous since I switched from stock stroke to stroker motors (so, since 2008). I have considered it....but when I built the current motor I did not gap my rings for nitrous use (since I'm already pushing the limits of my rods and block). My cheater setup now sits on a shelf collecting dust, because I don't trust my self having it installed on the car....the temptation to get that one 9 second time slip would be too much for me to handle, lol.

                                Edit: To answer your question directly, no, I have not used it on this combo. I built this engine about 3 years ago.
                                 
                              • 1bad360duster

                                1bad360duster Well-Known Member

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                                Fly fish your car and combo run awesome and my new build is inspired by/ kind of based off it
                                 
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                                • rumblefish360

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

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                                  Imitation is the sincerest form of flattery. No shame in copying. Or building something super similar. It’s proven combo you know it works! How do you go wrong with that?!
                                   
                                • pittsburghracer

                                  pittsburghracer FABO Gold Member FABO Gold Member

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                                  I’m in the same spot. Most big money bracket racers have nitrous on their cars to play top end games. I’ve kicked it around as I have almost everything sitting here unused for my heads up car. I’ve never tried nitrous so trying it could be very let’s say costly to me. Lol.
                                   
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