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Showing content with the highest reputation on 09/05/2018 in all areas

  1. 3 points
    gerg

    XF FALCON EFI ROLLA ROCKERS

    Possible: Yes (Cleveland style bolt-on rockers) Performance: no Economy: no Stock rockers are fine for stock or mild engines, just use a good quality zinc oil or a moly additive to prevent wear in the pivot over a long period. Roller rockers are mechanical insurance for a modified valvetrain ie: bigger cam, stiffer valve springs, higher rpm. With the greater forces involved with all of these aspects, the roller pivot and tip reduce friction and wear. The oil stays cleaner due to reduced shearing/breakdown. If you ever do go down that path, don't skimp on the quality. Lots of tiny hardened needle rollers floating around your engine is what we call a "Chernobyl" in the trade. Sent from my CPH1607 using Tapatalk
  2. 2 points
    ando76

    XF FALCON EFI ROLLA ROCKERS

    Be careful buying Yella Terra clevo for xflow if your buying a new set. YT have changed the design of their rockers. God only knows why they would change a design that's worked faultlessly for so many years, especially on a Clevo that went out of production 40 odd years ago, but they have. The new clevo design uses a 17mm pedestal whereas the old design uses a 14mm - same as crossflow. Some sets of the new design went out with a 14mm pedestal before they realised the new design has geometry issues on clevo if you try and use a 14mm pedestal - ask me how I know. Arghhh. So long story short - if your buying new for crossflow - specify xflow. But as others have said there is no advantage in a stocker and fitting them under the rocker cover with stock efi is a right pain.
  3. 1 point
    slydog

    XF FALCON EFI ROLLA ROCKERS

    If you buy the scorpian set for a v6 thunderbird there cheaper and you get the correct number. Buying a V8 set leaves you 4 left over which is handy at times.
  4. 1 point
    bear351c

    XF FALCON EFI ROLLA ROCKERS

    Agreed. +1. Clevo adjustables like YT6015 aren't cheap. (around $900, bolt on, 5/16" stud). Scorpion do a new set #3224,but haven't found a price for them yet. Non adjustables are around $600. and you'll have 2 spares.
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