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  1. #1
    cmherrera's Avatar
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    1200 or 1300 cylinders

    What cylinders are better for boring & porting to 1390cc?


  2. #2
    Chrisrokc's Avatar
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    Quote Originally Posted by cmherrera View Post
    What cylinders are better for boring & porting to 1390cc?
    1200 cylinders are better for this.

  3. #3
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    1200

  4. #4
    Dirty Sanchez's Avatar
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    I got what you need 3 cylinders.

  5. #5
    Duke's Avatar
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    1200 has a bigger boost port and seems to be the more desired by the porters.

  6. #6
    Mik72e's Avatar
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    PM Set on 1390BB complete set up

  7. #7
    cmherrera's Avatar
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    Thanks guys Mik72e PM sent

  8. #8
    2000 GPRXP 4tec shooter98xpl's Avatar
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    I wonder how many actually know what the difference in power is between a 1300 and a 1200 bored out to a 1300. Is it that much of a difference thats noticeable? Or is it just because you can make the boost port bigger than gives it just a little more. Can't the 1300 boost ports be opened up? I'll have to set a 1200 and a 1300 side by side and take a look. Duke you probably did this with your 951, opened up the boost ports, we did. So has anybody actually done a back to back test to see which one was better?

    SHOOTER

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