1. Ronald Weishaar

    Ronald Weishaar Well-Known Member

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    Seems like my Indy rockers are no longer available! My one exhaust pushrod broke apart at the cup and messed up the rocker. So it looks like I need a whole new set of rocker arms. What are some good choices for the money? I know of some of the high dollar rockers, but are there other choices that will work with my Mopar .557?
     
  2. vintage chromoly

    vintage chromoly Well-Known Member

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    Rocker arms are not the right place to save a buck, IMO.

    I’d look at Harland Sharp.
     
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    • 68Dart470

      68Dart470 Well-Known Member

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      Look at Mancini rockers (Harland Sharp bodies). I'd run straight Harland Sharp if planning to go any bigger.
       
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      • Darter6

        Darter6 FBBO Gold Member FBBO Gold Member

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        There is also T&D
         
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        • Lefty71

          Lefty71 FBBO Gold Member FBBO Gold Member

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          I thought those were Indy?? No longer?

          Anyone have detail as far as why Indy would not have them??
           
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          • 68Dart470

            68Dart470 Well-Known Member

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            Indy rockers have had a really bad rep over the years. Breaking under roller spring pressures which most run with there 440- heads etc. Maybe the new owners will get with a better supplier like HS, Hughes, RAS, etc for something reliable.
             
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            • Cranky

              Cranky Henchman #1 Staff Member FBBO Gold Member

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              What's Isky like these days? Had great results with them on a .660 lift roller cam years ago....
               
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              • Darter6

                Darter6 FBBO Gold Member FBBO Gold Member

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                I just did a Summit search for Isky Chrysler rockers. Nothing. Still have cams though.
                 
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                • PRHeads

                  PRHeads Well-Known Member

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                  Be aware that not all of the different brands of rockers will require the same length pushrods.

                  So, you may end up needing pushrods after swapping the rockers.

                  What brand of pushrod was it that failed?

                  The least expensive rockers I’ll use these days are the HS made pieces from Mancini.

                  The last set of “Isky” rockers I bought(over 15 years ago) were Crane pieces in an Isky box(Crane cast into the rocker).
                  I think it’s been a very long time since the Isky style rocker has been produced.
                   
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                  • Cranky

                    Cranky Henchman #1 Staff Member FBBO Gold Member

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                    Didn't see anything for Mopar on the Isky site either....dang.
                     
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                    • PRHeads

                      PRHeads Well-Known Member

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                      When I last priced a set of Crane iron rockers, which had to be 10 years ago or so, they were $499...... just the rockers, adjusters, separator springs.
                      No shafts, no hold downs.

                      I used something else.
                       
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                      • 1 Wild R/T

                        1 Wild R/T FBBO Gold Member FBBO Gold Member

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                        I seem to recall Indy rockers were made by Dove, but as previously noted they are known to fail when spring pressures rise... I tried to find a link to Dove but got noting.. They may be gone..
                         
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                        • 747mopar

                          747mopar FBBO Gold Member FBBO Gold Member

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                          I bought Comp Magnum rockers for mine, I checked the contact pattern.. looked perfect. I've got 18,000 miles on them so far without any issues.

                          I like Harland Sharps but went with these because I liked the idea of them being bushed vs bearings seeing how they're well lubricated through the shaft.. one less thing to fail. Screenshot_20210805-111559~2.png
                           
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                          • 68Dart470

                            68Dart470 Well-Known Member

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                            Have these myself but they're not bushed. Just rocker body on shaft deal. Maybe the newer ones are bushed.
                             
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                            • 747mopar

                              747mopar FBBO Gold Member FBBO Gold Member

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                              Yes the newer ones are.
                               
                            • 1 Wild R/T

                              1 Wild R/T FBBO Gold Member FBBO Gold Member

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                              Are you sure yours are Comps? There's a knock off sold by Proform & PRW that looks allot like the Comps but the early version wasn't bushed & were prone to galling on the shafts... The newer version seems to be a decent part, lotta guys run them... I still prefer my old Isky Ductile Iron rockers but they've become collectors items so...

                              Screen Shot 2021-08-05 at 8.55.42 AM.png
                               
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                              • 2quick

                                2quick Well-Known Member

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                                What color are your rockers. I have a set of black INDY/DOVE rockers I would sell cheap. I broke one also so I replaced the set with T&D, but if it's only one rocker you need, PM me.
                                 
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                                • 68Dart470

                                  68Dart470 Well-Known Member

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                                  Early Comps weren't bushed. Neither are the Mancini rockers. It's really not required till roller spring pressures but definitely nice to have. It's the reason I'm going to run a solid flat tappet cam as I don't feel like dropping the money on better rockers just yet.
                                   
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                                  • Ronald Weishaar

                                    Ronald Weishaar Well-Known Member

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                                    My rockers are black 1.5 ratio Indy #440-RA-4SR
                                     
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                                    • 4mulas

                                      4mulas Well-Known Member

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                                      I think dove is no more. I have a Friend that has 390 FE motor that has had problems with Dove too.

                                      For the OP, T&D, Harland, Hughes. These are all good choices
                                       
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