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Head Shaving

Discussion in 'Engine Building' started by eViLwAyZ69, Feb 9, 2003.

  1. eViLwAyZ69

    eViLwAyZ69 Junior Member

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    i have a 91 prelude (b21a1) and i am currently doing head work on the car i was thinking of shaving the head to raise the compression. i was wondering what would be a good amount to shave it while keeping streetability. i also dont want to have to run any higher than 93 octane gas. i was also wondering what kind of power gains i would be getting out of this. is it worth it or not?
     
  2. asmallsol

    asmallsol Super Moderator

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    I would find some other way to raise compression by either getting high compression pistons and a thinner head gasket. The only time it is a good time to shave the head is when your head is worped.
     
  3. pills_PMD

    pills_PMD Super Moderator

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    mill it .020" or .030" either one i bet you would be fine
     
  4. ek9r

    ek9r Senior Member

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    yea, any higher than .030 and you run a high risk of bending a valve
     
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