valve spring clearance

Discussion in 'Engine, Fuel and Exhaust' started by coopernicus, Nov 30, 2015.

  1. coopernicus

    coopernicus Junior Member Contributor

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    Ok so I got my heads back and of course they have bigger valves in them. I layed the rocker box bottoms on the head and the intake springs are pretty close to the rocker bottom. I have clearance with the rockers and the tops but was wondering how much the springs need. They do not touch and have at least 1/8 inch clearance to the bolt holes on the rocker bottoms. Is this enough?
     
  2. coopernicus

    coopernicus Junior Member Contributor

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    If this helps only the intake valve springs seem close. I have AV & V valves & AV & V hi lift springs for cam lift up to .625. Thanks Bob
     
  3. dolt

    dolt Senior Member Contributor

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    I am having trouble visualizing the area you reference for potential contact but if I am understanding correctly, no issues.:s
     
  4. Jack Klarich

    Jack Klarich Expert Member

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    .060 is a good number to not have coil bind in a big lift cam engine JMO
     
  5. coopernicus

    coopernicus Junior Member Contributor

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    Ok bear with me, I'm new to to all this. The way my mind works is trying to cross all the t's and dot the i's. I was thinking about expansion but maybe will be A- OK. I think that I think too much, that's what I think about that!!:lero
     
  6. Jack Klarich

    Jack Klarich Expert Member

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    I was thinking on this all wrong, you want to know if the installed height of the springs with 1/8 in clearance is enough for the rocker boxes? IMO yes
     
  7. HDDon

    HDDon Experienced Member Contributor Retired Moderators

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    Jack has got you covered here. There is very little expansion of the diameter of the spring and the 1/8" clearance should be enough.
     
  8. coopernicus

    coopernicus Junior Member Contributor

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    YES Jack that was what I was wondering! OK thanks for easing my mind.thanks to you to hd don!