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Whats the diffrence?

Discussion in 'The Garage' started by hunterguy86, Oct 15, 2005.

  1. hunterguy86

    hunterguy86 1/2 ton status

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    Hey I know this is a stupid newbie question. However Im trying to learn all I can. So what is the diffrence between a roller cam and a flat tappet cam? And whats the diffrence between roller rocker arms and regular rockers?

    Sorry this is dumb but please enlighten me.
     
  2. sweetk30

    sweetk30 professional hooker Premium Member

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    regular scuffs against the lobs or valve tip. rollers roll on a bearing over the lobes or valve tips. rollers offer less friction and wear on items. and also give free hp to motor and rev just a bit faster.
     
  3. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    The lifters on a flat tappett are normal looking lifters , flat on the bottom where the cam touches it . Lifters on a roller cam have rollers on the bottom where cam touches it .

    Rockers are stamped steel stock , and its metal to metal on teh fulcrum point and valve stem tip .

    Cheap roller rockers are still stamped steel in the fulcrum point , but roller tip on the valve stem , creates less friction .

    Real roller rockers have a roller fulcrum , roller tip , and vrtually no friction .
    Which makes some power , is closer to its rated ratio than stamped steel , and lasts longer
     

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