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  1. #1
    Chrisrokc's Avatar
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    Jims Milled Head Questions

    Hey Jim,

    I am about to come into a stock 1300R head which I plan to send off to you to be milled. Decided to do this to get an extra kick in power before this winter. What type of gas does this stock milled head mod require? Also I am wanting to go to a ported 1390CC setup this winter. Will I beable to reuse this head?


  2. #2
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    Quote Originally Posted by Chrisrokc View Post
    Hey Jim,

    I am about to come into a stock 1300R head which I plan to send off to you to be milled. Decided to do this to get an extra kick in power before this winter. What type of gas does this stock milled head mod require? Also I am wanting to go to a ported 1390CC setup this winter. Will I beable to reuse this head?
    Hello Chris, You will need 92 or 93 octane the cost is $85 plus shipping. Down the road if you go 1390 you can still use that head but you will need the squish band opened up to 87 mm.

  3. #3
    Chrisrokc's Avatar
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    Quote Originally Posted by jims 1300 View Post
    Hello Chris, You will need 92 or 93 octane the cost is $85 plus shipping. Down the road if you go 1390 you can still use that head but you will need the squish band opened up to 87 mm.
    Do you have an option when 91 octane is the maximum? Damn Oklahoma.....

  4. #4
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    Quote Originally Posted by Chrisrokc View Post
    Do you have an option when 91 octane is the maximum? Damn Oklahoma.....
    the normal cut is 150 to 155 psi. with that you need 92 to 93 octane. I can mill it to 140 to 145 psi. and 91 octane will be ok.
    Last edited by JIM'S PERFORMANCE; 08-18-2007 at 06:40 AM.

  5. #5
    Hydrotherapy's Avatar
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    Last edited by Hydrotherapy; 08-18-2007 at 04:49 AM.

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