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Thread: broken polyloc question

  1. #1
    396_WAYS_TO_SPIT
    What causes a poly loc to break? I broke one on sunday @ WOT! I am going to buy a new set but want to know what would cause this....
    396

  2. #2
    Senior Member
    Join Date
    Mar 2010
    Posts
    883
    Many things. Can you post a picture of it?
    PS Please tell me it is not a 12 point head. . . .

  3. #3
    Squirtin Thunder
    What causes a poly loc to break? I broke one on sunday @ WOT! I am going to buy a new set but want to know what would cause this....
    396
    I have two brand new sets. Let me know;
    Two sets of Hi Tech Poly Locks for 7/16 studs #4000-16 for $45.00 each set.
    Make it $35 being its Christmass and I will send them out today.

  4. #4
    Taylorman
    That bad ass engine you got broke them f---ers. Either that or them big guns you use to tighten them.

  5. #5
    Moneypitt
    What type of rockers do you use, and do you use a girddle? How much cam shaft? MP

  6. #6
    396_WAYS_TO_SPIT
    Thanks for the replys guys. I stopped by bergeron marine and showed them. They said that the studs are too short. I am running comp stainless full rollers without a stud girdle. My cam is a clay smith solid .615 lift,258@.050,108 lobe

  7. #7
    396_WAYS_TO_SPIT
    That bad ass engine you got broke them f---ers. Either that or them big guns you use to tighten them.
    Your silly taylorman

  8. #8
    Moneypitt
    If you look at the posi lock it is quite small in the "shank" area. Without adaquate stud engagement, and without a girgle, all the strain of the rocker is directed at the weakest point of the posi lock . I would strongly suggest a girdle of some sort, even a "J mar" is better than nothing, and will work just fine as long as you don't have to run valves between races...........Another thing to check is the rocker spotface, was it up? or down? If installed wrong that will split the posi lock because it tightens down on a round surface...MP

  9. #9
    Squirtin Thunder
    @ the subscribers request this phone does not accept incoming calls.
    What the hell Mike ???

  10. #10
    396_WAYS_TO_SPIT
    after talking with jim we figured that my pushrods are too long. I have a "0" deck block and milled heads

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