Port & Polish???
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Port & Polish???

  1. #1
    Senior Member johnf's Avatar
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    Default Port & Polish???

    Some before and after pics, Hope this helps, Took minimal material while sanding, Should I polish more?? Heard intake just barely knock off the carbon?? Any good threads on how to do the intake ports?? Also should I worry about Chambers sticking out past gaskets since I run logs?? Thanks johnf
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  3. #2
    Senior Member Tinkerer's Avatar
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    DON'T take off any metal on the inside of the exhaust port floor. That short radius is too small already. Take off any sharp edges in the direction of flow. Don't make the ports bigger, You can smooth out the valve guides, smooth any rough edges inside the combustion chamber - ridge around the valves. Unshrouding the valves usually helps BUT removing metal from the combustion chamber will reduce compression. Port matching the intake to the head helps but is very time consuming. I have about 20 hours on each engine just port matching. And these are Jim V. Dart 1 alum heads. DON"T nick the valve seats. There is usually a bad ridge under the valve seats, You can Carefully remove some of that ridge. DON'T get crazy...
    Last edited by Tinkerer; 03-24-2013 at 06:45 PM.

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