distributor drive

Discussion in 'Big Block A body Tech' started by 383Scampman, Dec 5, 2018.

  1. 383Scampman

    383Scampman Well-Known Member

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    Hi folks , I am planning a "B" engine build and I have a couple of questions . Is there a roller cam available that doesn't require a bronze distributor drive ? And , if a roller cam requires a cam thrust button , what is the clearance ? Thanks and Merry Christmas and Healthy New Year . Too Tall Tom from Tilton
     
  2. AndyF

    AndyF Well-Known Member

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    Not that I know of but I could be wrong. Last time I talked to Comp tech line about it they said that all Mopar roller cam cores require the bronze gear. However, you might be able to use the new Hughes melonized gear. It is supposed to last a lot longer than a bronze gear so give them a call and see what they say.
     
  3. 383Scampman

    383Scampman Well-Known Member

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    Thanks Andy , I am a huge fan , keep up the great work
     
  4. 5.7 hemi

    5.7 hemi FABO Gold Member FABO Gold Member

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    Hughes has them, small and big block. They say they are compatible with roller or flat tappet cams.
     
  5. 383Scampman

    383Scampman Well-Known Member

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    Thanks guys . I'm thinking the Hughs one is stupid expensive ? Who said this hobby was cheap ?
     
  6. 5.7 hemi

    5.7 hemi FABO Gold Member FABO Gold Member

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    It is, the first time you don’t have to change it cause the bronze one is razor thin, it’s paid for itself.
     
  7. famous bob

    famous bob mopar misfit

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    I run .007 on the cam button clearance on a 505" wedge w/ a solid street roller.
     
  8. 383Scampman

    383Scampman Well-Known Member

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    Thanks bob , so if I'm .006-.008" I'm good for a street/strip hooter . Never did a roller motor before but I can clearly see the advantages . Take care .
     
  9. famous bob

    famous bob mopar misfit

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    Had .010 on a hot 406 sbc , no bad effects.
     
  10. Rmoore

    Rmoore Active Member

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    What's your car run Bob ? Whats your cam specs
     
  11. famous bob

    famous bob mopar misfit

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    Only made 2 runs. It spun so bad I didn`t even want to mess with it, only went 11;90`s.
    It needs bigger tires on it, didn`t lift the front end at all. Thinking about mini tubbing and slicks, the 295 65 15 drag radials aint gonna do it for me. Did`nt even try adjusting the cal tracs, it went pretty straight the way I had them set, just not enough tire. I am not interested in trying to science it out for the drag radials/ too old to mess with it that much.
    adv. duration285/254 , 248/254 @ .050 , lift is .616-.622 , lobe sep. is 113 .
    Had to go a little smaller on the cam and the wider lobe sep. to make my fuel inj. work better.
    1200 cfm throttle body and they told me my cam was too big, go figure !!
     
  12. SGBARRACUDA

    SGBARRACUDA ROY FABO Gold Member

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    .005 to .010 is the excepted standard.
     
  13. RustyRatRod

    RustyRatRod Just another dumbass. FABO Gold Member

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    None of the hydraulic rollers require a bronze gear, do they?
     
  14. famous bob

    famous bob mopar misfit

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    I think it depends on wheather it`s cast or billet . I had a cast hyd. roller once that didn`t require it, but it was very loud, went to a solid roller. Most all solid rollers are billet--------------
     
  15. Rmoore

    Rmoore Active Member

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  16. Rmoore

    Rmoore Active Member

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    What motor you using and cubic inches
     
  17. 383Scampman

    383Scampman Well-Known Member

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    FYI, Bob , we are running 245/60 M/T's in a '66 Cuda , no mini tubs SS springs with snubber 10.66 et on a well prepped track . You can run quick without cutting up your ride . Just need the right combination . Car does a wheelie for about 100 ft and comes down super easy . does 10.90's all day
     
  18. famous bob

    famous bob mopar misfit

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    Yeah, I definitely have a problem, I had a 3500 pound (w/o me), 92 gmc pick up that went as quick. It didn`t haver a traction problem tho w/ 10" slicks, it was hooked up.
    I can get 10" , maybe 10.5" slicks on this one , but w/ this much torque I don't think they would lift the magnum force front end. It doesn`t have a whole bunch of travel, and not springy at all. It had 500# (coil over) springs in it when I bought it, and rode like an unsuspended go cart. I changed the springs to 350# , rode better but don`t lift at all. I think it will take gobs of initial bite to make it lift. ??????????
     
  19. famous bob

    famous bob mopar misfit

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    505" wedge w/ raised port heads, solid roller , 727, 3;73 / dana 60 w/ Detroit locker, 1200 cfm fuel inj. system.
    Going to put a 5800 gov. in the trans next, then maybe mini tub it--------------Don't get around to doing too much in cold weather, and being 72 yrs. old !
    Am thinking I still have some rings that aren`t seated-------------2 runs down the quarter, and a little hot rodding on the street, w/ about 500ish (guessing) miles, you`d think they would be seated ! Doesn`t seem to have any blow by to speak of tho.
     
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