Looking for feedback on 440Source roller rockers

Engine, Trans & Driveline

  1. funknut

    funknut Well-Known Member

    Messages:
    316
    Likes Received:
    219
    Joined:
    Jul 29, 2015
    Location:
    Cincinnati, OH
    Local Time:
    3:32 PM
    At the end of the good weather season I had a problem with one of my crane gold roller rockers and it died a sad death. I'm looking for another set now and came across the 440Source roller rockers for what seems to be around half the cost ($320 incl. shims, spacers and alum. hold-downs) compared to other name brand roller rockers that are in the $600+ range.

    Cam is a .545 lift hydraulic flat tappet and I'll be installing the Comp 924 springs, so spring pressures are pretty moderate.

    Does anyone have personal experience with these (quality/longevity)?
     
  2. Schober Motorsports

    Schober Motorsports Well-Known Member

    Messages:
    404
    Likes Received:
    278
    Joined:
    Jun 20, 2010
    Location:
    Drag Strip
    Local Time:
    3:32 PM
    I ran mine with a Hughes Whiplash Cam. Spring pressures weren't insane, and that was purely for a street application. Ran 13.00's at the track. I know setting them up correctly plays a huge factor in longevity. I sold them when I went to a solid mechanical cam. Now I run Harland Sharps.
     
    • Thanks! Thanks! x 1
    • wsutard

      wsutard FBBO Gold Member FBBO Gold Member

      My Photo Garage
      Messages:
      563
      Likes Received:
      183
      Joined:
      Jul 7, 2016
      Location:
      Seattle
      Local Time:
      1:32 PM
      So I don’t have a specific answer to your question. But I just watched an Engine Masters where they tested out factory stamped vs roller rockers. Tons of great info, too bad right now it’s only for their subscribers. However, the nut of it was that roller rockers really only give you a performance boost (20hp on a 500hp engine) at very high RPM levels 5500-7000 with most of the gains kicking in around 6k. Most of their gains were also from the fact that the highest hp producing setup was with 1.6 rockers. 1.5 was about 10hp gain.

      This test was on a 350 built to run at 7k.

      What I took away, for a typical street machine, rollers are overkill.
       
      • Thanks! Thanks! x 1
      • 5.7 hemi

        5.7 hemi FBBO Gold Member FBBO Gold Member

        Messages:
        8,059
        Likes Received:
        2865
        Joined:
        Dec 21, 2008
        Location:
        ca
        Local Time:
        3:32 PM
        My dad yanked his off his 505 after “hearing” them all the time. Said they were just “too damn noisy”....but no problems with using them.
         
        • Thanks! Thanks! x 1
        • moparcrazy

          moparcrazy Well-Known Member

          Messages:
          1,490
          Likes Received:
          692
          Joined:
          Dec 27, 2009
          Location:
          california
          Local Time:
          3:32 PM
          Well my question is what caused your more expensive roller rockers to brake and did you find the problem, also why not just replace the ones that broke and stay with the better parts, also i run chines rockers Not (440sourse) and have gone best of 10.36 @ 129 and they still are working perfect, but like 5.7 hemi said they are noise and seem to loosen after 3-4 races on a hydraulic cam, but i do use a 250-275 shot of Nitrous.
           
          • Thanks! Thanks! x 1
          • funknut

            funknut Well-Known Member

            Messages:
            316
            Likes Received:
            219
            Joined:
            Jul 29, 2015
            Location:
            Cincinnati, OH
            Local Time:
            3:32 PM
            Thanks for the feedback. On the failed rocker the adjuster bolt backed out and the pushrod damaged the rocker. I checked the rest and several of the adjuster lock nuts on that side were not staying tight. Inspecting the rockers, it appears the lock nuts were severely over torqued by the previous owner and damaged the threads on at least 6 of the rockers.

            At this point I’d rather replace them all. If the 440 Source kit is decent quality it would be a rather inexpensive solution.

            Thanks for the input so far.
             
            • Thanks! Thanks! x 1
            • 66Satellite47

              66Satellite47 Well-Known Member

              Messages:
              1,919
              Likes Received:
              1135
              Joined:
              Jan 15, 2015
              Location:
              St Paul MN
              Local Time:
              3:32 PM
              Looking forward to more replies. I have a brand new set of 440 Source rockers, never used on the shelf. Read some bad reviews before I installed them & went with Hughes for now. In the old days ran the Crane Golds for over 1,000 runs before seeing some galling, with above 500# open pressure & 7000+ rpm.
               
            • 1967coronet440

              1967coronet440 FBBO Gold Member FBBO Gold Member

              Messages:
              3,323
              Likes Received:
              4287
              Joined:
              Oct 26, 2016
              Location:
              Indiana
              Local Time:
              3:32 PM
              Valve train is not a place you want to be cheap!
               
              • Agree Agree x 2
              • DCCoronet

                DCCoronet Well-Known Member

                Messages:
                56
                Likes Received:
                50
                Joined:
                May 26, 2014
                Location:
                Houston Tx
                Local Time:
                3:32 PM
                A friend of mine was putting together a stroked 400 and used the 440 source rockers... The machine shop called me and said while putting the rockers on, the shaft lock nuts started popping off...in fact during the call one shot off and made an audible ping while on the phone! Swapped to arp hardware and was ok, but switched over to the comp cams pro magnums after a couple hundred miles .....rollers were overkill for the motor, but he insisted on them.
                 
              • HEMI-ITIS

                HEMI-ITIS STREETER FBBO Gold Member

                My Photo Garage
                Messages:
                7,419
                Likes Received:
                5611
                Joined:
                Dec 14, 2008
                Location:
                Long Island,New York
                Local Time:
                4:32 PM
                I have never used 440 scorce anything,Not saying they are bad,,,,,,not saying they are good.What I will say is buy the best you can.Maybe last longer,maybe less flex causing stuff to loosen up,better is,,,,,,,,,,,,,,,,,,BETTER!

                7.18.17 015.jpg 7.24.17 036.jpg
                 
                • Agree Agree x 3
                • Yatzee

                  Yatzee Well-Known Member

                  Messages:
                  858
                  Likes Received:
                  662
                  Joined:
                  Jun 20, 2015
                  Location:
                  London
                  Local Time:
                  4:32 PM
                  Perhaps a call to 440 Source would reveal who manufactures their rockers and that might make your choice a bit easier. Don't be surprised if you can't find any reviews on their product, there seldom is on substandard parts. That's not to say their actually substandard, you may be one of many guinea pigs in the marketplace. The price seems a bit low for some reason and best you find out why because $320 now could equate to a few thousand later in a trashed engine. Call and ask the tough questions.
                   
                  • Agree Agree x 1
                  • Steve009

                    Steve009 FBBO Gold Member FBBO Gold Member

                    Messages:
                    444
                    Likes Received:
                    349
                    Joined:
                    Aug 2, 2016
                    Location:
                    Ottawa
                    Local Time:
                    4:32 PM
                    agreed but they did also mention that rollers we easier on wearing down the valves so for longevity maybe something to consider with a performance oriented engine.
                     
                  • 5.7 hemi

                    5.7 hemi FBBO Gold Member FBBO Gold Member

                    Messages:
                    8,059
                    Likes Received:
                    2865
                    Joined:
                    Dec 21, 2008
                    Location:
                    ca
                    Local Time:
                    3:32 PM
                    Get some ductile iron rockers and not ever have a worry.
                     
                    • Like Like x 2
                    • Agree Agree x 1
                    • wsutard

                      wsutard FBBO Gold Member FBBO Gold Member

                      My Photo Garage
                      Messages:
                      563
                      Likes Received:
                      183
                      Joined:
                      Jul 7, 2016
                      Location:
                      Seattle
                      Local Time:
                      1:32 PM
                      Possibly but I would bet that 99% of the street engines on this forum barely get used enough for longevity of a part to be a concern.
                       
                      • Agree Agree x 1
                      • funknut

                        funknut Well-Known Member

                        Messages:
                        316
                        Likes Received:
                        219
                        Joined:
                        Jul 29, 2015
                        Location:
                        Cincinnati, OH
                        Local Time:
                        3:32 PM
                        Thanks everyone. Based on your input and some threads over at moparts it seems like these are sketchy enough to avoid. I’ll be looking at the Crane and Comp iron rockers. The Harland Sharps In 1.5 ratio seem competitively priced as well.

                        Much appreciated.
                         
                      • wsutard

                        wsutard FBBO Gold Member FBBO Gold Member

                        My Photo Garage
                        Messages:
                        563
                        Likes Received:
                        183
                        Joined:
                        Jul 7, 2016
                        Location:
                        Seattle
                        Local Time:
                        1:32 PM
                        Mancini makes a set, $450. http://www.manciniracing.com/ben15alro.html
                         
                        • Thanks! Thanks! x 1
                        • wyrmrider

                          wyrmrider Well-Known Member

                          Messages:
                          156
                          Likes Received:
                          49
                          Joined:
                          Aug 26, 2014
                          Location:
                          los angeles
                          Local Time:
                          1:32 PM
                          roller rockers may be easier on the tips
                          but not so much if the geometry is correct and lash caps used
                          what is VERY easy to do with roller rockers (and easy enough with stock rockers) is valve guide wear if valve train is not dialed in
                           
                          • Thanks! Thanks! x 1
                          • 65Fury440

                            65Fury440 Well-Known Member

                            Messages:
                            102
                            Likes Received:
                            59
                            Joined:
                            Jan 1, 2014
                            Location:
                            Fl
                            Local Time:
                            4:32 PM
                            • Like Like x 1
                            • Thanks! Thanks! x 1
                            • wsutard

                              wsutard FBBO Gold Member FBBO Gold Member

                              My Photo Garage
                              Messages:
                              563
                              Likes Received:
                              183
                              Joined:
                              Jul 7, 2016
                              Location:
                              Seattle
                              Local Time:
                              1:32 PM
                              Good to know on the Christmas sale. I have $4k if parts to buy. I need all the help I can get.
                               
                              • Like Like x 1
                              • 1967coronet440

                                1967coronet440 FBBO Gold Member FBBO Gold Member

                                Messages:
                                3,323
                                Likes Received:
                                4287
                                Joined:
                                Oct 26, 2016
                                Location:
                                Indiana
                                Local Time:
                                3:32 PM
                                Adds up quick, doesn’t it