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Thread: Head Bolt Help

  1. #1

    Head Bolt Help

    I was taking off my riva rec heads actually just started with the first one with the 3 busted allen head bolts that came with the kit. I was gonna switch them out with the stock head bolts as others had said on here before but they are too long. They bottom out before they even touch the head. What for bolts are you guys swaping them out for. I was gonna order all new ones and a new head gasket but wanted to fix the one head and do a compression check and maybe head to the river for a couple speed runs quick to see if anything was gained.


  2. #2
    Moderator beerdart's Avatar
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    If no one chimes in I can get you the size later today. I recently install a set on my GPR.

  3. #3
    Moderator beerdart's Avatar
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    Just checked Riva they are m8 x 55.

    http://www.rivamotorsports.com/instr...s/RY100388.pdf

  4. #4
    sweet man I apreciate it. Is there somewhere special I need to go or the type of bolt to get to match the oem head bolt strength. I knew I shoulda listened when I read not to use the riva head bolts cause they would eventually break.

  5. #5
    Happily Self-Employed WFO's Avatar
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    Get 16 of the shortest 1300 head bolt

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