shaving a 20r.

Discussion in 'Engine/Drivetrain' started by joeyota653, Oct 16, 2010.

  1. joeyota653

    joeyota653 Enthusiast

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    whats the most material i can shave off a 20r head so that it still can be bolted to an early 22r pop up motor??
     
  2. Raffaelli

    Raffaelli Toyotaholic

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    Somewhere in the area past .120 of an inch. :eek::eek:

    They can be milled a ton. Ive milled mine .050. I know a guy who milled .120.

    Youll have to notch your pistons if you run any kind of cam, but thats easy.
     
  3. joeyota653

    joeyota653 Enthusiast

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    kk thanks for the info!
    also would i need an adj. timing chain sprocket if i mill?
    and i heard that shops can weld material back on the headto fill in pits???
     
  4. Raffaelli

    Raffaelli Toyotaholic

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    Yup. Any kind of milling and you need the sprocket.

    And why would it be pitted? Id look for another head before I would reweld the deck surface...
     
  5. 22R_All_Motor!

    22R_All_Motor! Addict

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    wth is an early 22r "pop-up" motor?:confused:
     
  6. joeyota653

    joeyota653 Enthusiast

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    the early 22r motors with the raised pistons.. 4got what they call em again...
    anyways thanks i think ill grab slackers own soon and get to work! hopefully shipping doesnt kill me!

    hey would it be worth replacing the valves to stock 22r valvetrain or should i just invest on bigger aftermarket valves? would 22r valves give me a big gain?
     
  7. 22R_All_Motor!

    22R_All_Motor! Addict

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    domed style piston? lol.. man, you confused the shiznit out of me....
     
  8. joeyota653

    joeyota653 Enthusiast

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    hahaha there yah go!!!
    sorry man back here thats what they call them...
     
  9. Raffaelli

    Raffaelli Toyotaholic

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    Ok, I ran a very ported 20R head with stock valves re-lapped. It ran GOOD! I havnt drivin my stage 5 valve headed engine yet so I couldnt tell you how much of a gain there is. But I spent alot of money doing it.

    If you dont want to take it that far, port it, stock valves, cheapy EngnBldr springs, cam and call it a day.

    By far the biggest gain on a hybrid motor is induction. Just like what LC tech guy said...Sidedrafts or a Holley if your after power. Webers wont cut it.

    :waytogo:

    Its a great feeling revving a "POS" 22R motor over 6 grand and it doesnt quit pulling one bit. :cool:
     
  10. 22R_All_Motor!

    22R_All_Motor! Addict

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    hell yea, i coulda sworn we made this one honda faq squazz his butt cheeks, lol...
    but just for the fun of it, run you a stock carb for a week or so, then slap a holley on there... gonna make you squazz your butt cheeks too!
     

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