flat tappet vs. roller

Discussion in 'Technical' started by xpsnake, Nov 13, 2005.

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  1. dmhines

    dmhines Dixie Maverick Boy

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    So your guys are saying a standard roller cam will fit in a non-roller block? I thought the cam bearing journals were different sizes ...
     
    dmhines, Nov 13, 2005
    #16
  2. Zooomzoomguy

    Zooomzoomguy Member

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    so if i get a normal roller cam and the conversion rollers i should be fine?
     
    Zooomzoomguy, Nov 13, 2005
    #17
  3. CornedBeef4.6L

    CornedBeef4.6L no longer here

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    Yep the difference is the lifter hole depth and of course the tapped holes for the spider assembly.
     
    CornedBeef4.6L, Nov 13, 2005
    #18
  4. CornedBeef4.6L

    CornedBeef4.6L no longer here

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    Yes just make sure to match lifter and cams meaning Hyd Roller With Hyd Roller
    Mech roller w/ mech roller

    If this is a mostly street car I recommend the Hyd Roller
     
    CornedBeef4.6L, Nov 13, 2005
    #19
  5. stockhatch

    stockhatch Re Member

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    The lightinings never came with roller cams.
     
    stockhatch, Nov 13, 2005
    #20
  6. Zooomzoomguy

    Zooomzoomguy Member

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    ehh its not gonna be much of a street car... :rolleyes:
     
    Zooomzoomguy, Nov 13, 2005
    #21
  7. littleredtoy

    littleredtoy Seth

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    With the conversion kit to a roller cam for a non-roller block wouldn't he get to keep
    his non-roller weighted balancer and flywheel/flexplate? Although chances are you
    would get these on a roller motor, that could be a $$ offset to consider depending on your selection of roller blocks.

    HP/torque wise I don't believe there is any more durability in the '85 and
    up roller blocks.


    Seth
     
    littleredtoy, Nov 13, 2005
    #22
  8. Zooomzoomguy

    Zooomzoomguy Member

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    i'm gonna be using neutral balance flywheel/balancer if that matters much
     
    Zooomzoomguy, Nov 13, 2005
    #23
  9. CornedBeef4.6L

    CornedBeef4.6L no longer here

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    Somebody correct me if I am wrong here but I believe the balance issue was an engineering change that had nothing to do with roller blocks. I think this took place in the early 80's You can switch balancer/flywheel(flexplate) to any crank as long as you match them 28oz/50 oz
     
    CornedBeef4.6L, Nov 13, 2005
    #24
  10. stockhatch

    stockhatch Re Member

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    Roller blocks are not the strongest 302 blocks made thats for sure, but I love the 1 piece rear main and the fact that no mods have to be done to put a roller cam in them.
     
    stockhatch, Nov 13, 2005
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  11. CornedBeef4.6L

    CornedBeef4.6L no longer here

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    Wow I have made like 5 posts on the same thread in under 10min:D

    I take it you are having the machine shop do an internal balance then. I recall you saying this was on a budget:coco: :D
     
    CornedBeef4.6L, Nov 13, 2005
    #26
  12. Zooomzoomguy

    Zooomzoomguy Member

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    ehh that wasn't me saying that it was on a budget



     
    Zooomzoomguy, Nov 13, 2005
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  13. stockhatch

    stockhatch Re Member

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    Im not sure thats correct. I think the amount of external balance is dependant on the crank construction and harmonics, but I could also be wrong :D
     
    stockhatch, Nov 13, 2005
    #28
  14. CornedBeef4.6L

    CornedBeef4.6L no longer here

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    :biglaugh: :biglaugh:

    Yea it was XPS Snake

    I'm still doped on cold/flu medicines
     
    CornedBeef4.6L, Nov 13, 2005
    #29
  15. scooper77515

    scooper77515 No current projects.

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    Wow, this is a hot thread...
     
    scooper77515, Nov 13, 2005
    #30
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