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Thread: Best Valves for K20/K24 Boost Setup

  1. #1
    Senior Member Spoolin_VTEC's Avatar
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    Best Valves for K20/K24 Boost Setup

    What are the best valves and why? I hear Supertech, Manley, blah blah blah. Which is best per situation (maybe based on power/boost levels) and reason why? I'm sure many people would like to shine light on this topic. I sure would.

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  4. #2
    Premium Member boosted_teg's Avatar
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    Im not 100% sure which ones are the best. I've had racers with 1000+whp saying both supertechs and both ferrera are best. Some said to get 6mm inconel exaust valves to withstand the heat.
    2001 Boosted Built k20a2 Billet BB 6766BB

    2013=579whp 406trq @ 24 psi c16
    10.87@137mph

    2014= 510whp 370trq @ 18psi pump gas


    2015= 7xx @ 30psi??

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    I was going to say I have heard most the big brands are the best but i have never heard of a valve going bad only the valvesprings break or allow valves to float or the retainers break.

  6. #4
    Premium Member boosted_teg's Avatar
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    If the valves are seated perfect then valves should be fine. If they arent seated perfect, then eventually the valve can break
    2001 Boosted Built k20a2 Billet BB 6766BB

    2013=579whp 406trq @ 24 psi c16
    10.87@137mph

    2014= 510whp 370trq @ 18psi pump gas


    2015= 7xx @ 30psi??

  7. #5
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    Quote Originally Posted by boosted_teg View Post
    If the valves are seated perfect then valves should be fine. If they arent seated perfect, then eventually the valve can break
    I think your incorrect lol jk. I've been watching some diy on making sure valves are flush with blue lap or lapping compound and go to work.

  8. #6
    Premium Member boosted_teg's Avatar
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    One racer at WCF was talking to us about how the ferrari engine builders seat the valves. They litterally take hours to do one valve to perfection (since they are all hand built). He said when the drop the valve, it should "flutter" when it hits, not just drop into place. Something along that line. It was interesting to listen to him explain it
    2001 Boosted Built k20a2 Billet BB 6766BB

    2013=579whp 406trq @ 24 psi c16
    10.87@137mph

    2014= 510whp 370trq @ 18psi pump gas


    2015= 7xx @ 30psi??

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    [MENTION=49]boosted_teg[/MENTION] this is what I was talking about with the lapping compound. I forget how long it is but the entire video is pretty good info.
    http://www.powerblocktv.com/episodes...r-head-porting

  10. #8
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    [MENTION=49]boosted_teg[/MENTION] sorry wrong link here it goes http://www.powerblocktv.com/episodes...r-head-refresh

  11. #9
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    What my boss sent me. "I like Fererra 6000 valves for there fit n finish. They are more than most. But I think there stronger."

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